| （単位：百万円） | 売上高 | 前年比（％） |
|---|---|---|
| 2025/6 | 20,229 | -3.3% |
| 2024/6 | 20,918 | -5.6% |
| 2023/6 | 22,164 | +5.8% |
| 2022/6 | 20,949 | +8.3% |
| 2021/6 | 19,338 | +10.9% |
| 2020/6 | 17,440 | +17.3% |
| 2019/6 | 14,872 | -8.7% |
| 2018/6 | 16,284 | +26.8% |
| 2017/6 | 12,841 | -0.1% |
| 2016/6 | 12,857 | +8.5% |
| 2015/6 | 11,849 | +21.0% |
| 2014/6 | 9,795 | +14.2% |
| 2013/6 | 8,574 | +6.2% |
| 2012/6 | 8,073 | +11.2% |
| 2011/6 | 7,260 | - |