股本结构
单位：万股
| 公告日期 | 2026-08-14 | 2026-08-14 | 2026-04-16 | 2026-04-16 | 2025-11-19 | 2025-11-19 |
|---|---|---|---|---|---|---|
| 证券总股本 | 158.26 | 158.70 | 161.80 | 163.25 | 163.50 | 164.25 |
| 普通股本 | 158.26 | 158.70 | 161.80 | 163.25 | 163.50 | 164.25 |
| 优先股 | 未披露 | 未披露 | 未披露 | 未披露 | 未披露 | 未披露 |
| 其他 | 未披露 | 未披露 | 未披露 | 未披露 | 未披露 | 未披露 |
| 变动日期 | 2026-08-14 | 2026-06-30 | 2026-04-10 | 2025-12-31 | 2025-11-12 | 2025-09-30 |
注释：中概股证券总股本=普通股股本/
存托凭证比例
历史变动
| 公告日期 | 变动后普通股本（万股） | 变动后优先股（万股） | 变动原因 | 变动日期 |
|---|---|---|---|---|
| 2026-08-14 | 158.26 | 未披露 | 定期报告 | 2026-08-14 |
| 2026-08-14 | 158.70 | 未披露 |
更多>>
From March 31, 2026 to June 30, 2026
Purchase of treasury shares, at cost
|
2026-06-30 |
| 2026-04-16 | 161.80 | 未披露 | 定期报告 | 2026-04-10 |
| 2026-04-16 | 163.25 | 未披露 |
更多>>
From December 31, 2024 to December 31, 2025
Purchase of treasury shares, at cost
|
2025-12-31 |
| 2025-11-19 | 163.50 | 未披露 | 定期报告 | 2025-11-12 |
| 2025-11-19 | 164.25 | 未披露 |
更多>>
From June 30, 2025 to September 30, 2025
Purchase 13,000 shares, at cost
|
2025-09-30 |
| 2025-08-19 | 164.90 | 未披露 | 定期报告 | 2025-08-13 |
| 2025-08-19 | 165.55 | 未披露 |
更多>>
From March 31, 2025 to June 30, 2025
Purchase of 16,970 shares, at cost
|
2025-06-30 |
| 2025-05-19 | 166.05 | 未披露 | 定期报告 | 2025-05-14 |
| 2025-05-19 | 167.25 | 未披露 |
更多>>
From December 31, 2024 to March 31, 2025
Purchase of treasury stock
|
2025-03-31 |
| 2025-04-15 | 170.85 | 未披露 |
更多>>
From December 31, 2023 to December 31, 2024
Purchase of treasury stock
|
2024-12-31 |
| 2024-11-14 | 171.75 | 未披露 | 定期报告 | 2024-11-14 |
| 2024-11-14 | 172.70 | 未披露 |
更多>>
From June 30, 2024 to September 30, 2024
Purchase of treasury stock
|
2024-09-30 |
| 2024-08-14 | 175.18 | 未披露 | 定期报告 | 2024-08-14 |
| 2024-08-14 | 176.21 | 未披露 |
更多>>
From March 31, 2024 to June 30, 2024
Purchase of treasury stock
|
2024-06-30 |
| 2024-05-17 | 178.49 | 未披露 | 定期报告 | 2024-05-13 |
| 2024-05-17 | 179.02 | 未披露 |
更多>>
From December 31, 2023 to March 31, 2024
Purchase of treasury stock
|
2024-03-31 |
| 2024-04-15 | 182.01 | 未披露 |
更多>>
From December 31, 2022 to December 31, 2023
Purchase of treasury stock
|
2023-12-31 |
| 2023-11-17 | 182.06 | 未披露 | 定期报告 | 2023-11-13 |
| 2023-11-17 | 182.85 | 未披露 |
更多>>
From June 30, 2023 to September 30, 2023
Purchase of treasury stock
|
2023-09-30 |
| 2023-08-15 | 183.53 | 未披露 | 定期报告 | 2023-08-15 |
| 2023-08-15 | 184.05 | 未披露 |
更多>>
From March 31, 2023 to June 30, 2023
Purchase of treasury stock
|
2023-06-30 |
| 2023-05-22 | 185.05 | 未披露 | 定期报告 | 2023-05-16 |
| 2023-04-17 | 186.75 | 未披露 | 定期报告 | 2023-04-10 |
| 2023-05-22 | 186.96 | 未披露 |
更多>>
From December 31, 2022 to March 31, 2023
Purchase 31,440 shares of common stock
|
2023-03-31 |
| 2023-04-17 | 190.10 | 未披露 |
更多>>
From December 31, 2021 to December 31, 2022
Purchase 91,077 shares of common stock
|
2022-12-31 |
| 2022-11-21 | 192.05 | 未披露 | 定期报告 | 2022-11-18 |
| 2022-11-21 | 193.07 | 未披露 |
更多>>
From December 31, 2021 to September 30, 2022
Purchase 61,377 shares of Common stock
|
2022-09-30 |
| 2022-08-19 | 193.60 | 未披露 | 定期报告 | 2022-08-15 |
| 2022-08-19 | 195.26 | 未披露 |
更多>>
From December 31, 2021 to June 30, 2022
Purchase 39,432 shares of Common stock
|
2022-06-30 |
| 2022-05-20 | 197.50 | 未披露 | 定期报告 | 2022-05-20 |
| 2022-05-20 | 198.09 | 未披露 |
更多>>
From December 31, 2021 to March 31, 2022
Purchase 11,188 shares of common stock
|
2022-03-31 |
| 2022-04-21 | 199.21 | 未披露 |
更多>>
From December 31, 2020 to December 31, 2021
Purchase 2,100 shares of common stock
|
2021-12-31 |
| 2020-06-29 | 199.42 | 未披露 |
更多>>
From December 31, 2019 to March 31, 2020
Purchase 4,801 shares of common stock
|
2020-03-31 |
| 2020-05-06 | 199.90 | 未披露 |
更多>>
From December 31, 2018 to December 31, 2019
Purchase 40,941 shares of common stock
|
2019-12-31 |
| 2019-11-07 | 200.54 | 未披露 | 定期报告 | 2019-11-01 |
| 2019-11-07 | 200.87 | 未披露 |
更多>>
From June 30, 2019 to September 30, 2019
Repurchase 8,815 shares of common stock
|
2019-09-30 |
| 2019-08-14 | 201.06 | 未披露 | 定期报告 | 2019-08-09 |
| 2019-08-14 | 201.75 | 未披露 |
更多>>
From December 31, 2018 to June 30, 2019
Repurchase 22,411 shares of common stock
|
2019-06-30 |
| 2019-05-20 | 202.61 | 未披露 | 定期报告 | 2019-05-14 |
| 2019-05-20 | 203.40 | 未披露 |
更多>>
From December 31, 2018 to March 31, 2019
Purchase 5,693 shares of common stock
|
2019-03-31 |
| 2019-04-16 | 203.99 | 未披露 |
更多>>
From December 31, 2017 to December 31, 2018
Purchase 129,451 shares of common stock
Retirement of 1,026,397 shares of common stock
|
2018-12-31 |
| 2018-11-19 | 204.95 | 未披露 | 定期报告 | 2018-11-13 |
| 2018-11-19 | 206.18 | 未披露 |
更多>>
From December 31, 2017 to September 30, 2018
Repurchase 107,565 shares of common stock
|
2018-09-30 |
| 2018-08-20 | 206.20 | 未披露 | 定期报告 | 2018-08-15 |
| 2018-08-20 | 209.65 | 未披露 |
更多>>
from December 31, 2017 to June 30, 2018
Repurchase 72,839 shares of common stock
|
2018-06-30 |
| 2018-05-18 | 209.71 | 未披露 | 定期报告 | 2018-05-11 |
| 2018-04-17 | 209.78 | 未披露 | 定期报告 | 2018-04-13 |
| 2018-05-18 | 210.22 | 未披露 |
更多>>
from December 31, 2017 to March 31, 2018
Repurchase 67,218 shares of common stock
|
2018-03-31 |
| 2018-04-17 | 216.94 | 未披露 |
更多>>
from December 31, 2016 to December 31, 2017
Purchase 114,133 shares of common stock
|
2017-12-31 |
| 2017-11-17 | 218.17 | 未披露 | 定期报告 | 2017-11-07 |
| 2017-11-17 | 218.23 | 未披露 |
更多>>
from December 31, 2016 to September 30, 2017
Repurchase 101,207 shares of common stock
|
2017-09-30 |
| 2017-08-18 | 218.94 | 未披露 | 定期报告 | 2017-08-11 |
| 2017-08-18 | 219.07 | 未披露 |
更多>>
from December 31, 2016 to June 30, 2017
Repurchase 92,824 shares of common stock
|
2017-06-30 |
| 2017-05-15 | 228.01 | 未披露 | 定期报告 | 2017-05-11 |
| 2017-04-28 | 228.31 | 未披露 | 定期报告 | 2017-04-10 |
| 2017-05-15 | 228.30 | 未披露 |
更多>>
from December 31, 2016 to March 31, 2017
Repurchase 492 shares of common stock
|
2017-03-31 |
| 2017-04-18 | 228.35 | 未披露 |
更多>>
from December 31, 2015 to December 31, 2016
Purchase 21,181 shares of common stock
|
2016-12-31 |
| 2016-11-14 | 229.39 | 未披露 | 定期报告 | 2016-11-10 |
| 2016-08-15 | 229.40 | 未披露 |
更多>>
from December 31, 2015 to May 11, 2016
Repurchase 10,720 shares of common stock
|
2016-05-11 |
| 2016-05-16 | 229.46 | 未披露 |
更多>>
from December 31, 2015 to March 31, 2016
Repurchase 10,131 shares of common stock
|
2016-03-31 |
| 2016-04-08 | 230.47 | 未披露 |
更多>>
From December 31, 2014 to December 31, 2015
Purchase 28,720 shares of common stock
|
2015-12-31 |
| 2015-11-16 | 230.72 | 未披露 | 定期报告 | 2015-11-06 |
| 2015-11-16 | 230.81 | 未披露 |
更多>>
from December 31, 2014 to September 30, 2015
Repurchase 25,330 shares of common stock
|
2015-09-30 |
| 2015-08-04 | 231.30 | 未披露 | 定期报告 | 2015-07-29 |
| 2015-08-04 | 231.35 | 未披露 |
更多>>
from December 31, 2014 to June 30, 2015
Repurchase 19,915 shares of common stock
|
2015-06-30 |
| 2015-05-14 | 231.41 | 未披露 | 定期报告 | 2015-05-11 |
| 2015-04-22 | 231.63 | 未披露 | 定期报告 | 2015-04-14 |
| 2015-05-14 | 231.41 | 未披露 |
更多>>
From December 31, 2014 to March 31, 2015
Repurchase 19,260 shares of common stock
|
2015-03-31 |
| 2015-03-18 | 231.65 | 未披露 | 定期报告 | 2015-03-04 |
| 2015-03-18 | 233.34 | 未披露 |
更多>>
from December 31, 2013 to December 31, 2014
Purchase 55,380 shares of common stock
|
2014-12-31 |
| 2014-11-13 | 234.37 | 未披露 | 定期报告 | 2014-11-10 |
| 2014-11-13 | 234.40 | 未披露 |
更多>>
from December 31, 2013 to September 30, 2014
Repurchase 44,799 shares of common stock
|
2014-09-30 |
| 2014-07-31 | 235.76 | 未披露 | 定期报告 | 2014-07-25 |
| 2014-07-31 | 236.39 | 未披露 |
更多>>
from December 31, 2013 to June 30, 2014
Repurchase 24,842 shares of common stock
|
2014-06-30 |
| 2014-05-07 | 236.69 | 未披露 | 定期报告 | 2014-05-02 |
| 2014-04-24 | 236.89 | 未披露 | 定期报告 | 2014-04-16 |
| 2014-05-07 | 236.82 | 未披露 |
更多>>
from December 31, 2013 to March 31, 2014
Repurchase 20,612 shares of common stock
|
2014-03-31 |
| 2014-03-26 | 236.96 | 未披露 | 定期报告 | 2014-03-24 |
| 2014-03-26 | 238.88 | 未披露 |
更多>>
From December 31,2012 to December 31,2013
Purchase 121,776 shares of common stock
|
2013-12-31 |
| 2013-11-05 | 240.59 | 未披露 | 定期报告 | 2013-10-30 |
| 2013-11-05 | 241.29 | 未披露 |
更多>>
from December 31, 2012 to September 30, 2013
Repurchase 97,682 shares of common stock
|
2013-09-30 |
| 2013-08-07 | 241.57 | 未披露 | 定期报告 | 2013-08-05 |
| 2013-08-07 | 241.83 | 未披露 |
更多>>
from December 31, 2012 to June 30, 2013
Repurchase 92,303 shares of common stock
|
2013-06-30 |
| 2013-05-08 | 243.79 | 未披露 | 定期报告 | 2013-05-03 |
| 2013-05-08 | 245.39 | 未披露 |
更多>>
from December 31, 2012 to March 31, 2013
Repurchase 56,641 shares of common stock
|
2013-03-31 |
| 2013-03-27 | 245.42 | 未披露 | 定期报告 | 2013-03-26 |
| 2013-03-27 | 251.06 | 未披露 |
更多>>
from December 31, 2011 to December 31, 2012
Purchase 191,309 shares of common stock
|
2012-12-31 |
| 2012-11-09 | 258.09 | 未披露 | 定期报告 | 2012-11-08 |
| 2012-11-09 | 259.41 | 未披露 |
更多>>
from December 31, 2011 to September 30, 2012
Purchase 107,734 shares of common stock
|
2012-09-30 |
| 2012-08-09 | 262.16 | 未披露 | 定期报告 | 2012-08-02 |
| 2012-08-09 | 262.28 | 未披露 |
更多>>
from December 31, 2011 to June 30, 2012
Purchase 79,032 shares of common stock
|
2012-06-30 |
| 2012-05-09 | 262.90 | 未披露 | 定期报告 | 2012-05-08 |
| 2012-05-09 | 268.22 | 未披露 |
更多>>
from December 31, 2011 to March 31, 2012
Purchase 19,620 shares of common stock
|
2012-03-31 |
| 2012-03-29 | 268.23 | 未披露 | 定期报告 | 2012-03-20 |
| 2012-03-29 | 270.19 | 未披露 |
更多>>
from Dec 31,2010 to Dec 31,2011
Purchase 100,184 shares of common stock
|
2011-12-31 |
| 2011-11-09 | 271.89 | 未披露 | 定期报告 | 2011-11-08 |
| 2011-11-09 | 273.13 | 未披露 | 定期报告 | 2011-09-30 |
| 2011-08-15 | 274.11 | 未披露 | 定期报告 | 2011-08-08 |
| 2011-08-15 | 275.21 | 未披露 | 定期报告 | 2011-06-30 |
| 2011-05-13 | 255.41 | 未披露 | 定期报告 | 2011-05-11 |
| 2011-04-08 | 275.96 | 未披露 | 定期报告 | 2011-04-01 |
| 2011-05-13 | 276.02 | 未披露 | 定期报告 | 2011-03-31 |
| 2011-04-08 | 280.21 | 未披露 |
更多>>
from Dec 1,2009 to Dec 31,2010
Purchase 230,044 shares of common stock
|
2010-12-31 |
| 2010-11-15 | 285.51 | 未披露 | 定期报告 | 2010-11-12 |
| 2010-11-15 | 286.19 | 未披露 | 定期报告 | 2010-09-30 |
| 2010-08-16 | 286.93 | 未披露 | 定期报告 | 2010-08-05 |
| 2010-08-16 | 288.27 | 未披露 | 定期报告 | 2010-06-30 |
| 2010-05-17 | 302.64 | 未披露 | 定期报告 | 2010-03-31 |
| 2010-04-15 | 303.21 | 未披露 |
更多>>
from December 31, 2008 to December 31, 2009
Retire 3,858,573 shares of treasury stock
Purchase 11,082 shares of common stock
|
2009-12-31 |
| 2009-04-03 | 304.15 | 未披露 | 定期报告 | 2009-04-02 |
| 2009-04-03 | 304.77 | 未披露 |
更多>>
from December 31, 2007 to December 31, 2008
Purchased 88,832 shares of common stock
|
2008-12-31 |
| 2008-03-27 | 307.51 | 未披露 | 定期报告 | 2008-03-21 |
| 2008-03-27 | 319.43 | 未披露 |
更多>>
from December 31, 2006 to December 31, 2007
Purchased 80,399 shares of common stock
|
2007-12-31 |
| 2007-04-02 | 319.47 | 未披露 | 定期报告 | 2007-03-26 |
| 2007-04-02 | 321.68 | 未披露 |
更多>>
from December 31, 2005 to December 31, 2006
Purchased 110,990 shares of common stock
|
2006-12-31 |
| 2006-04-06 | 330.32 | 未披露 | 定期报告 | 2006-03-28 |
| 2006-04-06 | 332.78 | 未披露 |
更多>>
from December 31, 2004 to December 31, 2005
Purchased 164,410 shares of common stock
|
2005-12-31 |
| 2005-04-06 | 347.79 | 未披露 | 定期报告 | 2005-03-28 |
| 2005-04-06 | 349.22 | 未披露 |
更多>>
from December 31, 2003 to December 31, 2004
Purchased 136,977 shares of common stock
|
2004-12-31 |
| 2004-03-31 | 361.25 | 未披露 | 定期报告 | 2004-03-25 |
| 2004-03-31 | 362.92 | 未披露 |
更多>>
from December 31, 2002 to December 31, 2003
Purchased 63,804 shares of common stock
|
2003-12-31 |
| 2003-04-30 | 369.53 | 未披露 | 定期报告 | 2003-03-25 |
| 2003-04-30 | 369.30 | 未披露 |
更多>>
from December 31, 2001 to December 31, 2002
Purchased 92,862 shares of common stock
|
2002-12-31 |
| 2002-04-01 | 376.32 | 未披露 | 定期报告 | 2002-03-25 |
| 2002-04-01 | 378.59 | 未披露 |
更多>>
from December 31, 2000 to December 31, 2001
Exercised stock options
Purchased 420,160 shares of common stock
|
2001-12-31 |
| 2001-04-02 | 388.65 | 未披露 | 定期报告 | 2001-03-21 |
| 2001-04-02 | 411.90 | 未披露 |
更多>>
from December 31, 1999 to December 31, 2000
Purchased 222,879 shares of common stock
|
2000-12-31 |
| 2000-03-31 | 433.51 | 未披露 | 定期报告 | 2000-03-24 |
| 2000-03-31 | 434.19 | 未披露 |
更多>>
from December 31, 1998 to December 31, 1999
Purchased 107,687 shares of common stock
|
1999-12-31 |
| 1999-03-31 | 443.91 | 未披露 | 定期报告 | 1999-03-23 |
| 1999-03-31 | 444.96 | 未披露 |
更多>>
from December 31, 1997 to December 31, 1998
Stock options exercised
Purchased 169,215 shares of common stock
|
1998-12-31 |
| 1998-03-31 | 448.45 | 未披露 | 定期报告 | 1998-03-20 |
| 1998-03-31 | 460.88 | 未披露 |
更多>>
from December 31,1996 to December 31,1997
Purchased 121,807 shares of Common stock
Amortization of encumbered Treasury stock
Net income
|
1997-12-31 |
| 1997-03-31 | 468.77 | 未披露 | 定期报告 | 1997-03-20 |
| 1997-03-31 | 494.76 | 未披露 |
更多>>
from December 31, 1995 to December 31, 1996
Purchased 105,388 shares of common stock
Purchased 400,000 shares of encumbered treasury stock
|
1996-12-31 |
| 1996-03-27 | 522.92 | 未披露 | 定期报告 | 1996-03-15 |
| 1996-03-27 | 523.60 | 未披露 |
更多>>
from December 31, 1994 to December 31, 1995
Purchased 442,923 shares of common stock
|
1995-12-31 |
| 1996-03-27 | 567.89 | 未披露 |
更多>>
from December 31, 1993 to December 31, 1994
Purchased 174,999 shares of common stock
Amortization of encumbered treasury stock
|
1994-12-31 |
From March 31, 2026 to June 30, 2026
Purchase of treasury shares, at cost
From December 31, 2024 to December 31, 2025
Purchase of treasury shares, at cost
From June 30, 2025 to September 30, 2025
Purchase 13,000 shares, at cost
From March 31, 2025 to June 30, 2025
Purchase of 16,970 shares, at cost
From December 31, 2024 to March 31, 2025
Purchase of treasury stock
From December 31, 2023 to December 31, 2024
Purchase of treasury stock
From June 30, 2024 to September 30, 2024
Purchase of treasury stock
From March 31, 2024 to June 30, 2024
Purchase of treasury stock
From December 31, 2023 to March 31, 2024
Purchase of treasury stock
From December 31, 2022 to December 31, 2023
Purchase of treasury stock
From June 30, 2023 to September 30, 2023
Purchase of treasury stock
From March 31, 2023 to June 30, 2023
Purchase of treasury stock
From December 31, 2022 to March 31, 2023
Purchase 31,440 shares of common stock
From December 31, 2021 to December 31, 2022
Purchase 91,077 shares of common stock
From December 31, 2021 to September 30, 2022
Purchase 61,377 shares of Common stock
From December 31, 2021 to June 30, 2022
Purchase 39,432 shares of Common stock
From December 31, 2021 to March 31, 2022
Purchase 11,188 shares of common stock
From December 31, 2020 to December 31, 2021
Purchase 2,100 shares of common stock
From December 31, 2019 to March 31, 2020
Purchase 4,801 shares of common stock
From December 31, 2018 to December 31, 2019
Purchase 40,941 shares of common stock
From June 30, 2019 to September 30, 2019
Repurchase 8,815 shares of common stock
From December 31, 2018 to June 30, 2019
Repurchase 22,411 shares of common stock
From December 31, 2018 to March 31, 2019
Purchase 5,693 shares of common stock
From December 31, 2017 to December 31, 2018
Purchase 129,451 shares of common stock
Retirement of 1,026,397 shares of common stock
From December 31, 2017 to September 30, 2018
Repurchase 107,565 shares of common stock
from December 31, 2017 to June 30, 2018
Repurchase 72,839 shares of common stock
from December 31, 2017 to March 31, 2018
Repurchase 67,218 shares of common stock
from December 31, 2016 to December 31, 2017
Purchase 114,133 shares of common stock
from December 31, 2016 to September 30, 2017
Repurchase 101,207 shares of common stock
from December 31, 2016 to June 30, 2017
Repurchase 92,824 shares of common stock
from December 31, 2016 to March 31, 2017
Repurchase 492 shares of common stock
from December 31, 2015 to December 31, 2016
Purchase 21,181 shares of common stock
from December 31, 2015 to May 11, 2016
Repurchase 10,720 shares of common stock
from December 31, 2015 to March 31, 2016
Repurchase 10,131 shares of common stock
From December 31, 2014 to December 31, 2015
Purchase 28,720 shares of common stock
from December 31, 2014 to September 30, 2015
Repurchase 25,330 shares of common stock
from December 31, 2014 to June 30, 2015
Repurchase 19,915 shares of common stock
From December 31, 2014 to March 31, 2015
Repurchase 19,260 shares of common stock
from December 31, 2013 to December 31, 2014
Purchase 55,380 shares of common stock
from December 31, 2013 to September 30, 2014
Repurchase 44,799 shares of common stock
from December 31, 2013 to June 30, 2014
Repurchase 24,842 shares of common stock
from December 31, 2013 to March 31, 2014
Repurchase 20,612 shares of common stock
From December 31,2012 to December 31,2013
Purchase 121,776 shares of common stock
from December 31, 2012 to September 30, 2013
Repurchase 97,682 shares of common stock
from December 31, 2012 to June 30, 2013
Repurchase 92,303 shares of common stock
from December 31, 2012 to March 31, 2013
Repurchase 56,641 shares of common stock
from December 31, 2011 to December 31, 2012
Purchase 191,309 shares of common stock
from December 31, 2011 to September 30, 2012
Purchase 107,734 shares of common stock
from December 31, 2011 to June 30, 2012
Purchase 79,032 shares of common stock
from December 31, 2011 to March 31, 2012
Purchase 19,620 shares of common stock
from Dec 31,2010 to Dec 31,2011
Purchase 100,184 shares of common stock
from Dec 1,2009 to Dec 31,2010
Purchase 230,044 shares of common stock
from December 31, 2008 to December 31, 2009
Retire 3,858,573 shares of treasury stock
Purchase 11,082 shares of common stock
from December 31, 2007 to December 31, 2008
Purchased 88,832 shares of common stock
from December 31, 2006 to December 31, 2007
Purchased 80,399 shares of common stock
from December 31, 2005 to December 31, 2006
Purchased 110,990 shares of common stock
from December 31, 2004 to December 31, 2005
Purchased 164,410 shares of common stock
from December 31, 2003 to December 31, 2004
Purchased 136,977 shares of common stock
from December 31, 2002 to December 31, 2003
Purchased 63,804 shares of common stock
from December 31, 2001 to December 31, 2002
Purchased 92,862 shares of common stock
from December 31, 2000 to December 31, 2001
Exercised stock options
Purchased 420,160 shares of common stock
from December 31, 1999 to December 31, 2000
Purchased 222,879 shares of common stock
from December 31, 1998 to December 31, 1999
Purchased 107,687 shares of common stock
from December 31, 1997 to December 31, 1998
Stock options exercised
Purchased 169,215 shares of common stock
from December 31,1996 to December 31,1997
Purchased 121,807 shares of Common stock
Amortization of encumbered Treasury stock
Net income
from December 31, 1995 to December 31, 1996
Purchased 105,388 shares of common stock
Purchased 400,000 shares of encumbered treasury stock
from December 31, 1994 to December 31, 1995
Purchased 442,923 shares of common stock
from December 31, 1993 to December 31, 1994
Purchased 174,999 shares of common stock
Amortization of encumbered treasury stock