| （単位：千ドル） | 自己株式の取得による支出 | 前年比（％） |
|---|---|---|
| 2024/12 | 494,191 | +86.5% |
| 2023/12 | 264,913 | -31.9% |
| 2022/12 | 388,964 | -15.1% |
| 2021/12 | 457,946 | +116.8% |
| 2020/12 | 211,196 | -59.9% |
| 2019/12 | 527,211 | +113.0% |
| 2018/12 | 247,500 | -17.6% |
| 2017/12 | 300,312 | -49.3% |
| 2016/12 | 592,550 | +1.7% |
| 2015/12 | 582,623 | +1.0% |
| 2014/12 | 576,755 | +88.8% |
| 2013/12 | 305,564 | -40.2% |
| 2012/12 | 510,630 | +32.8% |
| 2011/12 | 384,515 | +127.4% |
| 2010/12 | 169,099 | - |