| 経常（税引前）利益率（％） | 前年比（％） | |
|---|---|---|
| 2025/5 | 13.25 | +5.6% |
| 2024/5 | 12.54 | -21.2% |
| 2023/5 | 15.92 | -4.0% |
| 2022/5 | 16.58 | +13.9% |
| 2021/5 | 14.56 | +11.3% |
| 2020/5 | 13.09 | -1.4% |
| 2019/5 | 13.28 | +5.2% |
| 2018/5 | 12.63 | -5.4% |
| 2017/5 | 13.34 | +3.8% |
| 2016/5 | 12.85 | +25.5% |
| 2015/5 | 10.24 | +41.3% |
| 2014/5 | 7.25 | +2.3% |
| 2013/5 | 7.09 | +14.9% |
| 2012/5 | 6.17 | -14.7% |
| 2011/5 | 7.23 | +83.3% |
| 2010/5 | 3.94 | - |