| （単位：千ドル） | 自己株式の取得による支出 | 前年比（％） |
|---|---|---|
| 2025/5 | 10,100 | +98.0% |
| 2024/5 | 5,100 | -89.8% |
| 2023/5 | 50,100 | +18.2% |
| 2022/5 | 42,400 | - |
| 2020/5 | 4,100 | -60.2% |
| 2019/5 | 10,300 | -21.4% |
| 2018/5 | 13,100 | -33.8% |
| 2017/5 | 19,800 | +5.3% |
| 2016/5 | 18,800 | -87.6% |
| 2015/5 | 151,500 | +15050.0% |
| 2014/5 | 1,000 | -93.2% |
| 2013/5 | 14,600 | +299.0% |
| 2012/5 | 3,659 | +44.1% |
| 2011/5 | 2,539 | - |