| （単位：千ドル） | 自己株式の取得による支出 | 前年比（％） |
|---|---|---|
| 2024/12 | 307,400 | +59.2% |
| 2023/12 | 193,100 | -66.3% |
| 2022/12 | 572,800 | -31.8% |
| 2021/12 | 839,300 | +182.6% |
| 2020/12 | 297,000 | +9.3% |
| 2019/12 | 271,800 | +95.1% |
| 2018/12 | 139,300 | -64.2% |
| 2017/12 | 388,900 | -54.9% |
| 2016/12 | 863,051 | +194.7% |
| 2015/12 | 292,906 | +36.1% |
| 2014/12 | 215,183 | -45.2% |
| 2013/12 | 393,012 | -4.7% |
| 2012/12 | 412,196 | -22.8% |
| 2011/12 | 533,848 | +2.2% |
| 2010/12 | 522,546 | - |