| （単位：千ドル） | 自己株式の取得による支出 | 前年比（％） |
|---|---|---|
| 2022/12 | 17,000 | -98.3% |
| 2021/12 | 1,000,000 | +53.8% |
| 2020/12 | 650,000 | -34.7% |
| 2019/12 | 996,000 | +23.7% |
| 2018/12 | 805,000 | +61.0% |
| 2017/12 | 500,000 | 0.0% |
| 2016/12 | 500,000 | +19.0% |
| 2015/12 | 420,000 | +68.0% |
| 2014/12 | 250,000 | +52.4% |
| 2013/12 | 164,000 | +264.4% |
| 2012/12 | 45,000 | +45.2% |
| 2011/12 | 31,000 | -35.4% |
| 2010/12 | 48,000 | - |