| （単位：百万円） | 売上原価 | 前年比（％） |
|---|---|---|
| 4Q25 | 1,096 | +5.7% |
| 3Q25 | 934 | -10.3% |
| 2Q25 | 1,014 | +2.2% |
| 1Q25 | 1,162 | +5.5% |
| 4Q24 | 1,037 | -2.7% |
| 3Q24 | 1,041 | +2.4% |
| 2Q24 | 992 | +3.0% |
| 1Q24 | 1,102 | +10.3% |
| 4Q23 | 1,066 | +12.6% |
| 3Q23 | 1,016 | +4.4% |
| 2Q23 | 963 | +6.1% |
| 1Q23 | 999 | -6.8% |
| 4Q22 | 947 | -0.3% |
| 3Q22 | 973 | +6.9% |
| 2Q22 | 908 | -1.6% |
| 1Q22 | 1,072 | -1.0% |
| 4Q21 | 949 | -3.3% |
| 3Q21 | 910 | +18.5% |
| 2Q21 | 922 | +27.9% |
| 1Q21 | 1,082 | -0.8% |
| 4Q20 | 982 | +9.6% |
| 3Q20 | 768 | -20.1% |
| 2Q20 | 721 | -23.8% |
| 1Q20 | 1,091 | +3.3% |
| 4Q19 | 896 | -13.1% |
| 3Q19 | 962 | +8.3% |
| 2Q19 | 945 | +2.1% |
| 1Q19 | 1,056 | +3.9% |
| 4Q18 | 1,031 | +17.9% |
| 3Q18 | 888 | +7.4% |
| 2Q18 | 926 | +11.9% |
| 1Q18 | 1,016 | -3.0% |
| 4Q17 | 874 | +1.8% |
| 3Q17 | 827 | -12.9% |
| 2Q17 | 827 | -12.7% |
| 1Q17 | 1,047 | -0.2% |
| 4Q16 | 858 | +1.0% |
| 3Q16 | 949 | - |
| 2Q16 | 948 | - |
| 1Q16 | 1,049 | - |
| 4Q15 | 850 | - |