| （単位：百万円） | 売上高 | 前年比（％） |
|---|---|---|
| 2025/5 | 42,705 | +14.8% |
| 2024/5 | 37,207 | -0.8% |
| 2023/5 | 37,509 | +2.3% |
| 2022/5 | 36,668 | +6.8% |
| 2021/5 | 34,334 | +13.0% |
| 2020/5 | 30,394 | +16.1% |
| 2019/5 | 26,172 | +1.4% |
| 2018/5 | 25,819 | +12.4% |
| 2017/5 | 22,978 | +2.3% |
| 2016/5 | 22,470 | -1.2% |
| 2015/5 | 22,747 | +2.7% |
| 2014/5 | 22,147 | +15.1% |
| 2013/5 | 19,244 | +13.7% |
| 2012/5 | 16,919 | +3.1% |
| 2011/5 | 16,410 | - |