| （単位：千ドル） | 自己株式の取得による支出 | 前年比（％） |
|---|---|---|
| 2024/12 | 6,501 | -55.2% |
| 2023/12 | 14,518 | -98.4% |
| 2022/12 | 618,480 | +31.7% |
| 2022/1 | 906,208 | +92.9% |
| 2021/1 | 469,691 | - |
| 2019/12 | 498,435 | +77.2% |
| 2018/12 | 281,354 | +4229.9% |
| 2017/12 | 6,498 | -2.5% |
| 2016/12 | 18,393 | +256.9% |
| 2016/1 | 6,665 | +29.3% |
| 2015/1 | 5,154 | - |
| 2013/12 | 80,795 | +198.2% |
| 2012/12 | 27,095 | -95.6% |
| 2011/12 | 631,149 | - |
| 2011/1 | 622,442 | - |