| （単位：千ドル） | 自己株式の取得による支出 | 前年比（％） |
|---|---|---|
| 2025/5 | 84,900 | -38.6% |
| 2024/6 | 138,200 | +763.8% |
| 2023/6 | 16,000 | -1.2% |
| 2022/5 | 16,200 | +1700.0% |
| 2021/5 | 900 | -96.6% |
| 2020/5 | 26,600 | -44.5% |
| 2019/6 | 47,900 | +3.0% |
| 2018/6 | 46,500 | +96.2% |
| 2017/6 | 23,700 | +68.1% |
| 2016/5 | 14,100 | +281.1% |
| 2015/5 | 3,700 | -70.9% |
| 2014/5 | 12,700 | +252.8% |
| 2013/6 | 3,600 | +33.3% |
| 2012/6 | 2,700 | +170.0% |
| 2011/5 | 1,000 | - |