| （単位：百万円） | 売上原価 | 前年比（％） |
|---|---|---|
| 4Q25 | 29,339 | +5.6% |
| 3Q25 | 29,592 | +7.0% |
| 2Q25 | 31,667 | +6.7% |
| 1Q25 | 28,749 | +8.8% |
| 4Q24 | 27,787 | +11.5% |
| 3Q24 | 27,668 | +10.7% |
| 2Q24 | 29,688 | +12.3% |
| 1Q24 | 26,418 | +9.2% |
| 4Q23 | 24,914 | +5.7% |
| 3Q23 | 24,997 | +8.6% |
| 2Q23 | 26,429 | +7.3% |
| 1Q23 | 24,203 | +10.8% |
| 4Q22 | 23,578 | +13.7% |
| 3Q22 | 23,014 | +12.7% |
| 2Q22 | 24,629 | +10.4% |
| 1Q22 | 21,851 | +2.0% |
| 4Q21 | 20,731 | +3.0% |
| 3Q21 | 20,423 | - |
| 2Q21 | 22,302 | - |
| 1Q21 | 21,422 | - |
| 4Q20 | 20,124 | - |