| （単位：千ドル） | 自己株式の取得による支出 | 前年比（％） |
|---|---|---|
| 2025/5 | 64,000 | - |
| 2023/5 | 150,000 | +200.0% |
| 2022/5 | 50,000 | -83.2% |
| 2021/5 | 298,100 | - |
| 2019/5 | 0 | -100.0% |
| 2018/5 | 967,300 | -3.3% |
| 2017/5 | 1,000,000 | - |
| 2016/5 | 0 | -100.0% |
| 2015/5 | 50,000 | -50.0% |
| 2014/5 | 100,000 | -59.2% |
| 2013/5 | 245,000 | -30.5% |
| 2012/5 | 352,400 | -57.3% |
| 2011/5 | 825,000 | +725.0% |
| 2010/5 | 100,000 | - |