| （単位：千ドル） | 自己株式の取得による支出 | 前年比（％） |
|---|---|---|
| 2024/12 | 50,526 | -49.5% |
| 2023/12 | 100,034 | -66.6% |
| 2022/12 | 299,667 | +562.2% |
| 2022/1 | 299,339 | +561.4% |
| 2021/1 | 45,255 | - |
| 2019/12 | 196,910 | +2.0% |
| 2018/12 | 193,028 | +2.3% |
| 2017/12 | 188,762 | +71.2% |
| 2016/12 | 300,445 | +266.0% |
| 2016/1 | 110,290 | +34.3% |
| 2015/1 | 82,099 | - |
| 2013/12 | 454,133 | - |
| 2012/12 | 0 | -100.0% |
| 2011/12 | 0 | - |
| 2011/1 | 50,000 | - |