| （単位：千ドル） | 自己株式の取得による支出 | 前年比（％） |
|---|---|---|
| 2024/12 | 482,000 | +84.1% |
| 2023/12 | 261,800 | +28.6% |
| 2022/12 | 203,500 | -19.3% |
| 2021/12 | 252,200 | +155.3% |
| 2020/12 | 98,800 | -75.3% |
| 2019/12 | 399,400 | -45.8% |
| 2018/12 | 736,900 | +20.7% |
| 2017/12 | 610,700 | +51.2% |
| 2016/12 | 403,800 | -0.2% |
| 2015/12 | 404,700 | +1.0% |
| 2014/12 | 400,600 | +87.1% |
| 2013/12 | 214,100 | -34.2% |
| 2012/12 | 325,600 | -29.3% |
| 2011/12 | 460,700 | +968.9% |
| 2010/12 | 43,100 | - |