| （単位：百万円） | 売上原価 | 前年比（％） |
|---|---|---|
| 1Q26 | 34,319 | +0.3% |
| 4Q25 | 37,143 | +2.0% |
| 3Q25 | 33,575 | +12.8% |
| 2Q25 | 35,764 | +3.5% |
| 1Q25 | 34,207 | +8.1% |
| 4Q24 | 36,410 | +2.9% |
| 3Q24 | 29,754 | +1.2% |
| 2Q24 | 34,544 | -3.6% |
| 1Q24 | 31,657 | -1.6% |
| 4Q23 | 35,380 | +21.1% |
| 3Q23 | 29,394 | +6.1% |
| 2Q23 | 35,835 | +24.8% |
| 1Q23 | 32,166 | +12.8% |
| 4Q22 | 29,226 | +10.9% |
| 3Q22 | 27,711 | +21.1% |
| 2Q22 | 28,718 | +13.9% |
| 1Q22 | 28,506 | +27.9% |
| 4Q21 | 26,364 | +15.7% |
| 3Q21 | 22,884 | -0.2% |
| 2Q21 | 25,204 | -4.0% |
| 1Q21 | 22,286 | -13.3% |
| 4Q20 | 22,794 | -15.6% |
| 3Q20 | 22,919 | -3.7% |
| 2Q20 | 26,266 | -10.1% |
| 1Q20 | 25,697 | -3.0% |
| 4Q19 | 27,021 | -7.0% |
| 3Q19 | 23,810 | -5.0% |
| 2Q19 | 29,207 | +5.0% |
| 1Q19 | 26,491 | +11.7% |
| 4Q18 | 29,062 | +15.7% |
| 3Q18 | 25,070 | +2.7% |
| 2Q18 | 27,805 | +6.3% |
| 1Q18 | 23,709 | +3.0% |
| 4Q17 | 25,117 | -5.8% |
| 3Q17 | 24,400 | +6.4% |
| 2Q17 | 26,168 | -3.4% |
| 1Q17 | 23,016 | -14.4% |
| 4Q16 | 26,659 | - |
| 3Q16 | 22,943 | - |
| 2Q16 | 27,096 | - |
| 1Q16 | 26,885 | - |