| （単位：千ドル） | 自己株式の取得による支出 | 前年比（％） |
|---|---|---|
| 2022/12 | 46,530 | +124.7% |
| 2021/12 | 20,711 | -2.1% |
| 2020/12 | 21,161 | +6.5% |
| 2019/12 | 19,867 | +50.8% |
| 2018/12 | 13,172 | +2873.4% |
| 2017/12 | 443 | -71.5% |
| 2016/12 | 1,557 | -21.7% |
| 2015/12 | 1,988 | -55.0% |
| 2014/12 | 4,420 | -25.1% |
| 2013/12 | 5,899 | -37.4% |
| 2012/12 | 9,424 | +127.7% |
| 2011/12 | 4,139 | +2044.6% |
| 2010/12 | 193 | - |