| （単位：千ドル） | 自己株式の取得による支出 | 前年比（％） |
|---|---|---|
| 2022/6 | 25,000 | -97.2% |
| 2021/6 | 905,000 | +264.9% |
| 2020/6 | 248,000 | -62.5% |
| 2019/6 | 661,000 | +143.9% |
| 2018/6 | 271,000 | +48.1% |
| 2017/6 | 183,000 | -28.0% |
| 2016/6 | 254,000 | -41.5% |
| 2015/6 | 434,000 | +66.9% |
| 2014/6 | 260,000 | +103.1% |
| 2013/6 | 128,000 | -43.1% |
| 2012/6 | 225,000 | -65.6% |
| 2011/6 | 655,000 | +336.7% |
| 2010/6 | 150,000 | - |