| （単位：百万円） | 売上原価 | 前年比（％） |
|---|---|---|
| 4Q25 | 19,125 | +1.3% |
| 3Q25 | 18,489 | +14.8% |
| 2Q25 | 18,862 | +0.5% |
| 1Q25 | 18,339 | +6.7% |
| 4Q24 | 18,878 | +8.0% |
| 3Q24 | 16,104 | +7.9% |
| 2Q23 | 18,774 | +15.3% |
| 1Q24 | 17,182 | +4.0% |
| 4Q23 | 17,479 | +14.4% |
| 3Q23 | 14,927 | -9.0% |
| 1Q23 | 16,515 | +2.3% |
| 4Q22 | 15,276 | -6.6% |
| 3Q21 | 16,409 | +1.3% |
| 2Q22 | 16,283 | -2.3% |
| 1Q22 | 16,137 | +3.1% |
| 4Q21 | 16,352 | -30.4% |
| 3Q20 | 16,200 | -5.4% |
| 2Q21 | 16,670 | -5.1% |
| 1Q21 | 15,644 | -15.6% |
| 4Q20 | 23,491 | +35.7% |
| 3Q19 | 17,130 | -15.6% |
| 2Q19 | 17,570 | -13.9% |
| 1Q20 | 18,541 | -3.3% |
| 4Q19 | 17,309 | -13.0% |
| 1Q19 | 19,182 | -1.6% |
| 4Q18 | 19,896 | -1.2% |
| 3Q18 | 20,289 | +3.5% |
| 2Q18 | 20,397 | +5.5% |
| 1Q18 | 19,491 | +5.9% |
| 4Q17 | 20,129 | +5.4% |
| 3Q17 | 19,597 | -0.1% |
| 2Q17 | 19,335 | - |
| 1Q17 | 18,402 | - |
| 4Q16 | 19,101 | - |
| 3Q16 | 19,610 | - |