| （単位：百万円） | 売上原価 | 前年比（％） |
|---|---|---|
| 4Q26 | 21,909 | +3.7% |
| 3Q26 | 20,058 | -8.8% |
| 2Q26 | 18,877 | -1.8% |
| 1Q26 | 19,548 | +1.3% |
| 4Q25 | 21,130 | -15.7% |
| 3Q25 | 21,991 | +57.9% |
| 2Q25 | 19,221 | +10.8% |
| 1Q25 | 19,306 | +9.4% |
| 4Q24 | 25,057 | -4.4% |
| 3Q24 | 13,929 | -31.1% |
| 2Q24 | 17,352 | -10.5% |
| 1Q24 | 17,643 | -10.1% |
| 4Q23 | 26,200 | +13.6% |
| 3Q23 | 20,217 | -5.6% |
| 2Q23 | 19,382 | -3.9% |
| 1Q23 | 19,629 | +22.2% |
| 4Q22 | 23,069 | +5.1% |
| 3Q22 | 21,421 | -6.0% |
| 2Q22 | 20,174 | +19.2% |
| 1Q22 | 16,067 | -26.0% |
| 4Q21 | 21,955 | -0.4% |
| 3Q21 | 22,794 | +26.2% |
| 2Q21 | 16,929 | -17.6% |
| 1Q21 | 21,716 | +18.3% |
| 4Q20 | 22,053 | -26.6% |
| 3Q20 | 18,068 | +4.2% |
| 2Q20 | 20,550 | +40.0% |
| 1Q20 | 18,361 | +33.6% |
| 4Q19 | 30,054 | +24.7% |
| 3Q19 | 17,332 | -16.1% |
| 2Q19 | 14,682 | -12.8% |
| 1Q19 | 13,748 | -28.7% |
| 4Q18 | 24,103 | -3.3% |
| 3Q18 | 20,666 | -5.2% |
| 2Q18 | 16,839 | -36.1% |
| 1Q18 | 19,289 | -24.2% |
| 4Q17 | 24,913 | -22.2% |
| 3Q17 | 21,790 | -21.2% |
| 2Q17 | 26,344 | - |
| 1Q17 | 25,453 | - |
| 4Q16 | 32,003 | - |
| 3Q16 | 27,647 | - |