| （単位：百万円） | 売上原価 | 前年比（％） |
|---|---|---|
| 1Q26 | 13,115 | -0.7% |
| 3Q25 | 14,065 | -1.8% |
| 2Q25 | 13,952 | +9.0% |
| 1Q25 | 13,205 | +8.6% |
| 4Q24 | 13,776 | -2.5% |
| 3Q24 | 14,322 | +18.4% |
| 2Q24 | 12,798 | +4.1% |
| 1Q24 | 12,161 | +4.6% |
| 4Q23 | 14,130 | +15.1% |
| 3Q23 | 12,097 | +5.4% |
| 2Q23 | 12,295 | -1.6% |
| 1Q23 | 11,625 | +4.1% |
| 4Q22 | 12,272 | -32.0% |
| 3Q22 | 11,482 | -25.6% |
| 2Q22 | 12,496 | -17.6% |
| 1Q22 | 11,172 | -20.1% |
| 4Q21 | 18,041 | +21.6% |
| 3Q21 | 15,425 | +15.6% |
| 2Q21 | 15,170 | -0.5% |
| 1Q21 | 13,984 | -3.1% |
| 4Q20 | 14,839 | -2.4% |
| 3Q20 | 13,338 | -1.0% |
| 2Q20 | 15,240 | +12.8% |
| 1Q20 | 14,436 | +12.4% |
| 4Q19 | 15,200 | +0.3% |
| 3Q19 | 13,476 | - |
| 2Q19 | 13,505 | - |
| 1Q19 | 12,847 | - |
| 4Q18 | 15,155 | - |