| 経常（税引前）利益率（％） | 前年比（％） | |
|---|---|---|
| 2025/5 | 9.96 | +96.6% |
| 2024/5 | 5.06 | -9.9% |
| 2023/5 | 5.62 | -37.3% |
| 2022/5 | 8.96 | -29.0% |
| 2021/5 | 12.61 | +43.7% |
| 2020/5 | 8.77 | +1.7% |
| 2019/5 | 8.63 | -21.7% |
| 2018/5 | 11.02 | +18.2% |
| 2017/5 | 9.32 | +85.9% |
| 2016/5 | 5.01 | -260.2% |
| 2015/5 | -3.13 | -196.1% |
| 2014/5 | 3.26 | -56.1% |
| 2013/5 | 7.42 | +57.3% |
| 2012/5 | 4.71 | -52.7% |
| 2011/5 | 9.96 | +10.9% |
| 2010/5 | 8.98 | - |