| （単位：百万円） | 売上原価 | 前年比（％） |
|---|---|---|
| 4Q25 | 31,501 | +7.3% |
| 3Q25 | 29,165 | +0.7% |
| 2Q25 | 29,220 | -0.4% |
| 1Q25 | 34,888 | -0.6% |
| 4Q24 | 29,366 | -2.5% |
| 3Q24 | 28,975 | -1.3% |
| 2Q24 | 29,326 | +0.2% |
| 1Q24 | 35,087 | +1.3% |
| 4Q23 | 30,117 | -7.1% |
| 3Q23 | 29,358 | -4.9% |
| 2Q23 | 29,254 | -4.5% |
| 1Q23 | 34,641 | -13.0% |
| 4Q22 | 32,433 | -3.2% |
| 3Q22 | 30,880 | -5.6% |
| 2Q22 | 30,643 | -2.5% |
| 1Q22 | 39,833 | +15.5% |
| 4Q21 | 33,503 | +2.5% |
| 3Q21 | 32,697 | -0.3% |
| 2Q21 | 31,421 | -1.7% |
| 1Q21 | 34,484 | -9.5% |
| 4Q20 | 32,691 | +1.3% |
| 3Q20 | 32,809 | +1.3% |
| 2Q20 | 31,974 | -0.3% |
| 1Q20 | 38,104 | -4.3% |
| 4Q19 | 32,287 | -4.9% |
| 3Q19 | 32,387 | -1.3% |
| 2Q19 | 32,082 | +0.6% |
| 1Q19 | 39,805 | -0.1% |
| 4Q18 | 33,940 | -2.7% |
| 3Q18 | 32,823 | +2.6% |
| 2Q18 | 31,904 | -0.1% |
| 1Q18 | 39,854 | +1.8% |
| 4Q17 | 34,896 | +7.2% |
| 3Q17 | 31,995 | -0.4% |
| 2Q17 | 31,930 | - |
| 1Q17 | 39,166 | - |
| 4Q16 | 32,539 | - |
| 3Q16 | 32,130 | - |