| （単位：百万円） | 売上原価 | 前年比（％） |
|---|---|---|
| 4Q25 | 22,412 | -11.2% |
| 1Q25 | 20,910 | +17.3% |
| 4Q24 | 25,233 | +12.0% |
| 3Q24 | 18,602 | +1.7% |
| 2Q24 | 20,768 | +0.5% |
| 1Q24 | 17,827 | -0.8% |
| 4Q23 | 22,539 | +8.7% |
| 3Q23 | 18,294 | +0.5% |
| 2Q23 | 20,666 | +5.3% |
| 1Q23 | 17,979 | +1.7% |
| 4Q22 | 20,737 | -3.7% |
| 3Q22 | 18,199 | -0.5% |
| 2Q22 | 19,625 | +3.3% |
| 1Q22 | 17,677 | +7.0% |
| 4Q21 | 21,526 | +4.4% |
| 3Q21 | 18,289 | +9.1% |
| 2Q21 | 19,004 | +0.1% |
| 1Q21 | 16,514 | -10.8% |
| 4Q20 | 20,611 | -25.1% |
| 3Q20 | 16,761 | -27.1% |
| 2Q20 | 18,993 | -18.5% |
| 1Q20 | 18,508 | -11.8% |
| 4Q19 | 27,528 | +17.8% |
| 3Q19 | 23,007 | +21.0% |
| 2Q19 | 23,297 | +11.8% |
| 1Q19 | 20,986 | +8.7% |
| 4Q18 | 23,371 | +16.0% |
| 3Q18 | 19,016 | +6.6% |
| 2Q18 | 20,836 | +5.3% |
| 1Q18 | 19,299 | +1.5% |
| 4Q17 | 20,140 | -6.2% |
| 3Q17 | 17,833 | +3.0% |
| 2Q17 | 19,779 | +0.8% |
| 1Q17 | 19,022 | +7.7% |
| 4Q16 | 21,465 | +4.9% |
| 3Q16 | 17,319 | - |
| 2Q16 | 19,613 | - |
| 1Q16 | 17,661 | - |
| 4Q15 | 20,464 | - |