| （単位：ドル） | 一株あたり利益 | 前年比（％） |
|---|---|---|
| 2025/5 | 4.46 | +16.8% |
| 2024/5 | 3.82 | +21.3% |
| 2023/5 | 3.15 | +26.5% |
| 2022/5 | 2.49 | -46.7% |
| 2021/5 | 4.67 | +47.8% |
| 2020/5 | 3.16 | +3.6% |
| 2019/5 | 3.05 | +228.0% |
| 2018/5 | 0.93 | -59.0% |
| 2017/5 | 2.27 | +7.6% |
| 2016/5 | 2.11 | -6.6% |
| 2015/5 | 2.26 | -6.6% |
| 2014/5 | 2.42 | +5.7% |
| 2013/5 | 2.29 | +15.1% |
| 2012/5 | 1.99 | +17.8% |
| 2011/5 | 1.69 | +38.5% |
| 2010/5 | 1.22 | - |