| 経常（税引前）利益率（％） | 前年比（％） | |
|---|---|---|
| 2025/5 | 21.9 | +6.5% |
| 2024/5 | 20.57 | +7.1% |
| 2023/5 | 19.21 | +0.7% |
| 2022/5 | 19.08 | +5.4% |
| 2021/5 | 18.1 | +21.1% |
| 2020/5 | 14.94 | -6.6% |
| 2019/5 | 15.99 | +23.2% |
| 2018/5 | 12.99 | +0.6% |
| 2017/5 | 12.91 | -11.8% |
| 2016/5 | 14.64 | -0.4% |
| 2015/5 | 14.7 | +10.1% |
| 2014/5 | 13.35 | +15.3% |
| 2013/5 | 11.58 | +0.9% |
| 2012/5 | 11.48 | +11.4% |
| 2011/5 | 10.31 | - |