| （単位：千ドル） | 自己株式の取得による支出 | 前年比（％） |
|---|---|---|
| 2023/12 | 196,494 | -4.4% |
| 2022/12 | 205,571 | +52.6% |
| 2021/12 | 134,679 | -16.4% |
| 2020/12 | 161,029 | +172.4% |
| 2019/12 | 59,116 | -78.1% |
| 2018/12 | 269,801 | -19.7% |
| 2017/12 | 336,042 | -0.1% |
| 2016/12 | 336,335 | -0.5% |
| 2015/12 | 337,910 | +44.5% |
| 2014/12 | 233,793 | +101.3% |
| 2013/12 | 116,132 | +21.6% |
| 2012/12 | 95,477 | +651.6% |
| 2011/12 | 12,704 | - |
| 2010/12 | 0 | - |