| （単位：百万円） | 売上原価 | 前年比（％） |
|---|---|---|
| 4Q21 | 56,292 | -183.1% |
| 3Q21 | 59,350 | +41.7% |
| 2Q21 | 58,214 | +16.1% |
| 1Q21 | 57,499 | +0.2% |
| 4Q20 | -67,716 | -235.1% |
| 1Q20 | 41,892 | -25.1% |
| 3Q20 | 57,362 | +15.7% |
| 2Q20 | 50,132 | +11.4% |
| 1Q20 | 55,920 | +5.5% |
| 4Q19 | 50,770 | +3.7% |
| 3Q19 | 49,563 | +4.6% |
| 2Q19 | 44,988 | +6.6% |
| 1Q19 | 52,996 | +7.6% |
| 4Q18 | 48,951 | +12.4% |
| 3Q18 | 47,363 | +9.5% |
| 2Q18 | 42,185 | +16.9% |
| 1Q18 | 49,232 | +10.5% |
| 4Q17 | 43,541 | +6.9% |
| 3Q17 | 43,260 | +7.9% |
| 2Q17 | 36,077 | - |
| 1Q17 | 44,542 | - |
| 4Q16 | 40,728 | - |
| 3Q16 | 40,092 | - |