| （単位：千） | 売上原価 | 前年比（％） |
|---|---|---|
| 2024/12 | 434,989 | -6.3% |
| 2023/12 | 464,145 | -15.4% |
| 2022/12 | 548,505 | -8.2% |
| 2021/12 | 597,397 | +6.8% |
| 2020/12 | 559,286 | -27.2% |
| 2019/12 | 768,302 | +28.8% |
| 2018/12 | 596,548 | -18.0% |
| 2017/12 | 727,197 | +0.1% |
| 2016/12 | 726,807 | -12.4% |
| 2015/12 | 829,386 | +6.1% |
| 2014/12 | 781,632 | +12.2% |
| 2013/12 | 696,355 | +10.3% |
| 2012/12 | 631,299 | - |