| （単位：百万円） | 売上原価 | 前年比（％） |
|---|---|---|
| 4Q25 | 29,908 | -8.2% |
| 3Q25 | 27,902 | -8.4% |
| 2Q25 | 28,661 | -6.5% |
| 1Q25 | 28,708 | +1.8% |
| 4Q24 | 32,570 | +3.6% |
| 3Q24 | 30,464 | +6.2% |
| 2Q24 | 30,638 | +5.0% |
| 1Q24 | 28,209 | -1.8% |
| 4Q23 | 31,425 | -2.5% |
| 3Q23 | 28,694 | -3.0% |
| 2Q23 | 29,173 | -0.0% |
| 1Q23 | 28,712 | +6.8% |
| 4Q22 | 32,245 | +2.9% |
| 3Q22 | 29,578 | +6.6% |
| 2Q22 | 29,181 | +7.8% |
| 1Q22 | 26,887 | +8.4% |
| 4Q21 | 31,345 | +23.4% |
| 3Q21 | 27,740 | +22.5% |
| 2Q21 | 27,075 | +18.3% |
| 1Q21 | 24,814 | +1.7% |
| 4Q20 | 25,392 | -4.9% |
| 3Q20 | 22,643 | -12.4% |
| 2Q20 | 22,894 | -14.3% |
| 1Q20 | 24,399 | -2.3% |
| 4Q19 | 26,692 | -8.5% |
| 3Q19 | 25,861 | -0.5% |
| 2Q19 | 26,724 | +1.4% |
| 1Q19 | 24,963 | -5.4% |
| 4Q18 | 29,167 | +7.8% |
| 3Q18 | 25,980 | +2.5% |
| 2Q18 | 26,351 | +4.5% |
| 1Q18 | 26,381 | +7.8% |
| 4Q17 | 27,059 | +9.4% |
| 3Q17 | 25,357 | +10.5% |
| 2Q17 | 25,208 | +3.5% |
| 1Q17 | 24,482 | +3.3% |
| 4Q16 | 24,731 | -3.7% |
| 3Q16 | 22,951 | - |
| 2Q16 | 24,346 | - |
| 1Q16 | 23,689 | - |
| 4Q15 | 25,688 | - |