| （単位：千ドル） | 自己株式の取得による支出 | 前年比（％） |
|---|---|---|
| 2024/12 | 114 | -78.5% |
| 2023/12 | 530 | -78.1% |
| 2022/12 | 12,447 | +1612.1% |
| 2022/1 | 2,420 | +232.9% |
| 2021/1 | 727 | - |
| 2019/12 | 4,197 | +47.0% |
| 2018/12 | 2,856 | -60.5% |
| 2017/12 | 1,218 | -99.5% |
| 2016/12 | 7,237 | -96.9% |
| 2016/1 | 231,282 | -47.2% |
| 2015/1 | 437,911 | - |
| 2013/12 | 582,254 | +114.6% |
| 2012/12 | 271,293 | +36.2% |
| 2011/12 | 270,882 | - |
| 2011/1 | 199,222 | - |