股本结构
单位：万股
| 公告日期 | 2018-11-08 | 2018-08-08 | 2018-08-08 | 2018-05-09 | 2018-05-09 | 2018-03-13 |
|---|---|---|---|---|---|---|
| 证券总股本 | 848.29 | 859.46 | 873.36 | 895.53 | 905.90 | 909.15 |
| 普通股本 | 848.29 | 859.46 | 873.36 | 895.53 | 905.90 | 909.15 |
| 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 | 2018-09-30 | 2018-08-03 | 2018-06-30 | 2018-05-04 | 2018-03-31 | 2018-03-09 |
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 |
|---|---|---|---|---|
| 2018-11-08 | 848.29 | 未披露 |
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from December 31, 2017 to September 30, 2018
Purchase of treasury stock
|
2018-09-30 |
| 2018-08-08 | 859.46 | 未披露 | 定期报告 | 2018-08-03 |
| 2018-08-08 | 873.36 | 未披露 |
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from December 31, 2017 to June 30, 2018
Purchase of treasury stock
|
2018-06-30 |
| 2018-05-09 | 895.53 | 未披露 | 定期报告 | 2018-05-04 |
| 2018-05-09 | 905.90 | 未披露 |
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from December 31, 2017 to March 31, 2018
Purchase of treasury stock
|
2018-03-31 |
| 2018-03-13 | 909.15 | 未披露 | 定期报告 | 2018-03-09 |
| 2018-03-13 | 909.55 | 未披露 |
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from December 31, 2016 to December 31, 2017
Purchase of treasury stock
|
2017-12-31 |
| 2017-11-08 | 1004.19 | 未披露 | 定期报告 | 2017-11-03 |
| 2017-11-08 | 1006.39 | 未披露 |
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From December 31, 2016 to September 30, 2017
Purchase of treasury stock
|
2017-09-30 |
| 2017-08-08 | 1020.32 | 未披露 | 定期报告 | 2017-08-04 |
| 2016-03-14 | 1024.75 | 未披露 |
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From December 31, 2014 to December 31, 2015
Purchase of treasury stock
|
2015-12-31 |
| 2015-11-09 | 1032.62 | 未披露 | 定期报告 | 2015-11-06 |
| 2015-11-09 | 1040.77 | 未披露 |
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from December 31, 2014 to September 30, 2015
Purchase of treasury stock
|
2015-09-30 |
| 2015-08-10 | 1054.12 | 未披露 | 定期报告 | 2015-08-06 |
| 2014-05-15 | 1076.80 | 未披露 |
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from December 31,2013 to March 31, 2014
Purchase of treasury stock
|
2014-03-31 |
| 2014-03-27 | 1076.80 | 未披露 | 定期报告 | 2014-03-24 |
| 2014-03-27 | 1079.42 | 未披露 |
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from December 31, 2012 to December 31, 2013
Purchase of treasury stock
|
2013-12-31 |
| 2013-11-14 | 1093.44 | 未披露 | 定期报告 | 2013-11-06 |
| 2013-11-14 | 1116.13 | 未披露 |
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from December 31, 2012 to September 30, 2013
Purchase of treasury stock
|
2013-09-30 |
| 2013-08-14 | 1119.81 | 未披露 | 定期报告 | 2013-06-30 |
from December 31, 2017 to September 30, 2018
Purchase of treasury stock
from December 31, 2017 to June 30, 2018
Purchase of treasury stock
from December 31, 2017 to March 31, 2018
Purchase of treasury stock
from December 31, 2016 to December 31, 2017
Purchase of treasury stock
From December 31, 2016 to September 30, 2017
Purchase of treasury stock
From December 31, 2014 to December 31, 2015
Purchase of treasury stock
from December 31, 2014 to September 30, 2015
Purchase of treasury stock
from December 31,2013 to March 31, 2014
Purchase of treasury stock
from December 31, 2012 to December 31, 2013
Purchase of treasury stock
from December 31, 2012 to September 30, 2013
Purchase of treasury stock