| （単位：百万円） | 売上原価 | 前年比（％） |
|---|---|---|
| 2026/3 | 655,111 | +10.7% |
| 2025/3 | 592,043 | -6.9% |
| 2024/3 | 635,748 | -7.8% |
| 2023/3 | 689,241 | -5.0% |
| 2022/3 | 725,368 | +41.6% |
| 2021/3 | 512,155 | +21.5% |
| 2020/3 | 421,630 | +6.3% |
| 2019/3 | 396,495 | +2.2% |
| 2018/3 | 387,831 | +13.7% |
| 2017/3 | 341,177 | +1.1% |
| 2016/3 | 337,314 | -13.8% |
| 2015/3 | 391,509 | +2.5% |
| 2014/3 | 382,079 | +4.4% |
| 2013/3 | 365,963 | - |