| （単位：千ドル） | 自己株式の取得による支出 | 前年比（％） |
|---|---|---|
| 2024/12 | 247,500 | +80.0% |
| 2023/12 | 137,500 | -24.0% |
| 2022/12 | 379,500 | +263.9% |
| 2022/1 | 180,900 | +73.4% |
| 2021/1 | 104,300 | - |
| 2019/12 | 237,700 | -39.5% |
| 2018/12 | 392,900 | +202.9% |
| 2017/12 | 129,700 | -44.2% |
| 2016/12 | 262,400 | -26.2% |
| 2016/1 | 232,300 | -34.7% |
| 2015/1 | 355,500 | - |
| 2013/12 | 283,500 | +20.5% |
| 2012/12 | 235,200 | +116.4% |
| 2011/12 | 13,500 | - |
| 2011/1 | 108,700 | - |