| （単位：千ドル） | 自己株式の取得による支出 | 前年比（％） |
|---|---|---|
| 2025/5 | 70,000 | -55.8% |
| 2024/5 | 158,200 | +19.8% |
| 2023/5 | 132,100 | +295.5% |
| 2022/5 | 33,400 | - |
| 2020/5 | 35,500 | +317.6% |
| 2019/5 | 8,500 | -68.9% |
| 2018/5 | 27,300 | +295.7% |
| 2017/5 | 6,900 | -52.1% |
| 2016/5 | 14,400 | +311.4% |
| 2015/5 | 3,500 | -43.5% |
| 2014/5 | 6,200 | -47.5% |
| 2013/5 | 11,800 | -9.9% |
| 2012/5 | 13,100 | -92.2% |
| 2011/5 | 166,900 | - |