| （単位：百万円） | 売上原価 | 前年比（％） |
|---|---|---|
| 2026/3 | 304,283 | +3.0% |
| 2025/3 | 295,500 | +16.6% |
| 2024/3 | 253,418 | +29.6% |
| 2023/3 | 195,539 | -1.5% |
| 2022/3 | 198,437 | +16.7% |
| 2021/3 | 169,983 | -0.5% |
| 2020/3 | 170,863 | +7.4% |
| 2019/3 | 159,087 | +7.5% |
| 2018/3 | 148,029 | -2.0% |
| 2017/3 | 150,990 | -15.4% |
| 2016/3 | 178,543 | -2.8% |
| 2015/3 | 183,598 | +1.6% |
| 2014/3 | 180,709 | +21.6% |
| 2013/3 | 148,551 | - |