| （単位：円） | 一株あたり利益 | 前年比（％） |
|---|---|---|
| 2025/5 | 175.99 | +18.2% |
| 2024/5 | 148.86 | +8.5% |
| 2023/5 | 137.22 | +18.3% |
| 2022/5 | 115.96 | +266.6% |
| 2021/5 | 31.63 | +891.5% |
| 2020/5 | 3.19 | -82.3% |
| 2019/5 | 18.05 | +35.6% |
| 2018/5 | 13.31 | +1.1% |
| 2017/5 | 13.17 | +1704.1% |
| 2016/5 | 0.73 | -99.3% |
| 2015/5 | 99.31 | +25.7% |
| 2014/5 | 78.98 | -171.9% |
| 2013/5 | -109.91 | -624.1% |
| 2012/5 | 20.97 | - |