| （単位：百万円） | 売上原価 | 前年比（％） |
|---|---|---|
| 2026/3 | 178,876 | +4.2% |
| 2025/3 | 171,660 | +7.3% |
| 2024/3 | 160,010 | -13.8% |
| 2023/3 | 185,575 | +7.3% |
| 2022/3 | 172,995 | +25.8% |
| 2021/3 | 137,508 | -1.0% |
| 2020/3 | 138,940 | -5.9% |
| 2019/3 | 147,674 | +3.7% |
| 2018/3 | 142,426 | +12.9% |
| 2017/3 | 126,207 | -7.5% |
| 2016/3 | 136,447 | -7.0% |
| 2015/3 | 146,657 | +4.9% |
| 2014/3 | 139,777 | -3.1% |
| 2013/3 | 144,224 | - |