| 経常（税引前）利益率（％） | 前年比（％） | |
|---|---|---|
| 2025/5 | 24.67 | +11.3% |
| 2024/5 | 22.17 | +21.3% |
| 2023/5 | 18.27 | +1.4% |
| 2022/5 | 18.02 | -43.9% |
| 2021/5 | 32.11 | +4.0% |
| 2020/5 | 30.88 | -0.6% |
| 2019/5 | 31.05 | -4.0% |
| 2018/5 | 32.36 | +6.0% |
| 2017/5 | 30.53 | -1.2% |
| 2016/5 | 30.89 | -8.0% |
| 2015/5 | 33.57 | -6.2% |
| 2014/5 | 35.8 | -4.2% |
| 2013/5 | 37.38 | +7.1% |
| 2012/5 | 34.92 | +9.0% |
| 2011/5 | 32.03 | +4.2% |
| 2010/5 | 30.73 | - |