| （単位：百万ドル） | 自己株式の取得による支出 | 前年比（％） |
|---|---|---|
| 2025/5 | 600 | -50.1% |
| 2024/5 | 1,202 | -7.5% |
| 2023/5 | 1,300 | -92.0% |
| 2022/5 | 16,248 | -22.4% |
| 2021/5 | 20,934 | +8.8% |
| 2020/5 | 19,240 | -46.8% |
| 2019/5 | 36,140 | +218.5% |
| 2018/5 | 11,347 | +218.6% |
| 2017/5 | 3,561 | -65.9% |
| 2016/5 | 10,440 | +29.1% |
| 2015/5 | 8,087 | -17.6% |
| 2014/5 | 9,813 | -11.0% |
| 2013/5 | 11,021 | +88.2% |
| 2012/5 | 5,856 | +404.8% |
| 2011/5 | 1,160 | +16.9% |
| 2010/5 | 992 | - |