| （単位：百万円） | 売上高 | 前年比（％） |
|---|---|---|
| 2025/5 | 457,093 | +8.2% |
| 2024/5 | 422,330 | +10.9% |
| 2023/5 | 380,963 | +8.6% |
| 2022/5 | 350,744 | +3.6% |
| 2021/5 | 338,476 | +5.9% |
| 2020/5 | 319,588 | +11.6% |
| 2019/5 | 286,299 | +6.8% |
| 2018/5 | 268,161 | +8.4% |
| 2017/5 | 247,341 | +6.7% |
| 2016/5 | 231,892 | +8.4% |
| 2015/5 | 213,918 | +8.3% |
| 2014/5 | 197,483 | +8.5% |
| 2013/5 | 181,966 | +7.2% |
| 2012/5 | 169,790 | +9.6% |
| 2011/5 | 154,875 | - |