| （単位：千ドル） | 自己株式の取得による支出 | 前年比（％） |
|---|---|---|
| 2024/9 | 478,501 | +26.2% |
| 2023/9 | 379,284 | -19.8% |
| 2022/9 | 472,970 | -45.5% |
| 2021/9 | 867,091 | +363.8% |
| 2020/9 | 186,953 | +90.4% |
| 2019/9 | 98,208 | +233.3% |
| 2018/9 | 29,466 | +17.5% |
| 2017/9 | 25,078 | -3.1% |
| 2016/9 | 25,892 | +12.0% |
| 2015/9 | 23,113 | -33.8% |
| 2014/9 | 34,924 | -90.8% |
| 2013/9 | 379,718 | +137.7% |
| 2012/9 | 159,751 | -4.4% |
| 2011/9 | 167,044 | +872.8% |
| 2010/9 | 17,171 | - |