| （単位：千ドル） | 自己株式の取得による支出 | 前年比（％） |
|---|---|---|
| 2025/6 | 168,563 | +4.4% |
| 2024/6 | 161,487 | -40.9% |
| 2023/6 | 273,235 | +2692.4% |
| 2022/6 | 9,785 | -98.1% |
| 2021/6 | 509,137 | +6422.4% |
| 2020/6 | 7,806 | +33.7% |
| 2019/6 | 5,838 | +13.6% |
| 2018/6 | 5,138 | +17.1% |
| 2017/6 | 4,386 | +35.8% |
| 2016/6 | 3,230 | -5.0% |
| 2015/6 | 3,400 | -6.9% |
| 2014/6 | 3,653 | -97.1% |
| 2013/6 | 127,529 | -59.7% |
| 2012/6 | 316,563 | +490.1% |
| 2011/6 | 53,647 | - |