| （単位：百万円） | 売上高 | 前年比（％） |
|---|---|---|
| 2025/5 | 10,221 | +0.9% |
| 2024/5 | 10,126 | -2.3% |
| 2023/5 | 10,368 | -1.8% |
| 2022/5 | 10,553 | -68.9% |
| 2021/5 | 33,923 | -17.1% |
| 2020/5 | 40,942 | -0.3% |
| 2019/5 | 41,082 | +1.6% |
| 2018/5 | 40,431 | +0.5% |
| 2017/5 | 40,236 | +3.8% |
| 2016/5 | 38,755 | +0.8% |
| 2015/5 | 38,432 | -2.1% |
| 2014/5 | 39,242 | +11.1% |
| 2013/5 | 35,318 | -1.5% |
| 2012/5 | 35,869 | -1.0% |
| 2011/5 | 36,221 | - |