| （単位：千ドル） | 自己株式の取得による支出 | 前年比（％） |
|---|---|---|
| 2024/12 | 290,000 | -1.6% |
| 2023/12 | 294,700 | -31.7% |
| 2022/12 | 198,100 | +13.7% |
| 2022/1 | 431,300 | +147.4% |
| 2021/1 | 174,300 | - |
| 2019/12 | 238,400 | -16.1% |
| 2018/12 | 284,100 | -1.3% |
| 2017/12 | 287,900 | +160.8% |
| 2016/12 | 120,400 | +51.8% |
| 2016/1 | 110,400 | +39.2% |
| 2015/1 | 79,300 | - |
| 2013/12 | 82,600 | +5.8% |
| 2012/12 | 78,100 | +797.7% |
| 2011/12 | 37,400 | - |
| 2011/1 | 8,700 | - |