| （単位：百万円） | 売上原価 | 前年比（％） |
|---|---|---|
| 2026/3 | 328,764 | +1.9% |
| 2025/3 | 322,702 | -10.6% |
| 2024/3 | 360,846 | +17.9% |
| 2023/3 | 306,037 | +9.3% |
| 2022/3 | 279,981 | -5.6% |
| 2021/3 | 296,479 | -14.7% |
| 2020/3 | 347,683 | +13.7% |
| 2019/3 | 305,895 | +25.4% |
| 2018/3 | 243,986 | -10.6% |
| 2017/3 | 272,968 | -1.7% |
| 2016/3 | 277,722 | -13.3% |
| 2015/3 | 320,219 | +7.9% |
| 2014/3 | 296,675 | +24.8% |
| 2013/3 | 237,635 | - |