| （単位：千ドル） | 自己株式の取得による支出 | 前年比（％） |
|---|---|---|
| 2024/4 | 372,800 | +1.4% |
| 2023/4 | 367,500 | +35.9% |
| 2022/4 | 270,400 | -60.1% |
| 2021/4 | 678,400 | +16052.4% |
| 2020/4 | 4,200 | -22.2% |
| 2019/4 | 5,400 | -22.9% |
| 2018/4 | 7,000 | -98.4% |
| 2017/4 | 437,600 | -0.8% |
| 2016/4 | 441,100 | +1715.2% |
| 2015/4 | 24,300 | -95.2% |
| 2014/4 | 508,500 | +39.6% |
| 2013/4 | 364,200 | +15.3% |
| 2012/4 | 315,780 | -18.9% |
| 2011/4 | 389,135 | - |