| （単位：百万円） | 売上原価 | 前年比（％） |
|---|---|---|
| 2026/3 | 203,211 | -11.8% |
| 2025/3 | 230,491 | +7.0% |
| 2024/3 | 215,448 | +7.9% |
| 2023/3 | 199,732 | +8.1% |
| 2022/3 | 184,713 | +2.5% |
| 2021/3 | 180,136 | -5.9% |
| 2020/3 | 191,443 | +1.8% |
| 2019/3 | 188,116 | +5.1% |
| 2018/3 | 179,010 | +4.4% |
| 2017/3 | 171,403 | -0.8% |
| 2016/3 | 172,713 | +2.3% |
| 2015/3 | 168,852 | -1.2% |
| 2014/3 | 170,867 | +13.6% |
| 2013/3 | 150,441 | - |