| 経常（税引前）利益率（％） | 前年比（％） | |
|---|---|---|
| 2024/5 | 15.25 | -2.4% |
| 2023/5 | 15.63 | -7.5% |
| 2022/5 | 16.9 | +7.2% |
| 2021/5 | 15.76 | +6.9% |
| 2020/5 | 14.75 | +19.5% |
| 2019/5 | 12.34 | -9.0% |
| 2018/5 | 13.57 | -6.7% |
| 2017/5 | 14.54 | +0.2% |
| 2016/5 | 14.51 | +45.2% |
| 2015/5 | 9.99 | -32.6% |
| 2014/5 | 14.82 | +3.9% |
| 2013/5 | 14.26 | +7.5% |
| 2012/5 | 13.27 | -18.7% |
| 2011/5 | 16.32 | +9.5% |
| 2010/5 | 14.9 | - |