| （単位：百万円） | 売上高 | 前年比（％） |
|---|---|---|
| 2025/5 | 29,679 | +1.4% |
| 2024/5 | 29,278 | +6.2% |
| 2023/5 | 27,568 | +8.9% |
| 2022/5 | 25,318 | +2.2% |
| 2021/5 | 24,777 | +29.6% |
| 2020/5 | 19,117 | +4.7% |
| 2019/5 | 18,258 | +15.6% |
| 2018/5 | 15,792 | +4.2% |
| 2017/5 | 15,157 | +3.3% |
| 2016/5 | 14,670 | +8.9% |
| 2015/5 | 13,470 | +6.5% |
| 2014/5 | 12,646 | +10.7% |
| 2013/5 | 11,426 | +2.8% |
| 2012/5 | 11,115 | -1.7% |
| 2011/5 | 11,307 | - |