| （単位：百万ドル） | 売上原価 | 前年比（％） |
|---|---|---|
| 1Q18 | 2,325 | +9.2% |
| 4Q17 | 2,428 | +9.5% |
| 3Q17 | 2,174 | +7.4% |
| 2Q17 | 2,244 | +10.1% |
| 1Q17 | 2,129 | +10.1% |
| 4Q16 | 2,217 | +5.5% |
| 3Q16 | 2,024 | +9.2% |
| 2Q16 | 2,039 | +6.9% |
| 1Q16 | 1,933 | +12.4% |
| 4Q15 | 2,102 | +4.3% |
| 3Q15 | 1,853 | -1.1% |
| 2Q15 | 1,907 | -9.7% |
| 1Q15 | 1,720 | -11.0% |
| 4Q14 | 2,014 | +21.6% |
| 3Q14 | 1,873 | +21.2% |
| 2Q14 | 2,112 | +34.4% |
| 1Q14 | 1,933 | +26.1% |
| 4Q13 | 1,657 | +4.2% |
| 3Q13 | 1,546 | +2.4% |
| 2Q13 | 1,572 | +5.0% |
| 1Q13 | 1,533 | -0.5% |
| 4Q12 | 1,590 | +2.2% |
| 3Q12 | 1,510 | +0.7% |
| 2Q12 | 1,497 | +2.6% |
| 1Q12 | 1,540 | +13.7% |
| 4Q11 | 1,556 | +14.1% |
| 3Q11 | 1,499 | +11.6% |
| 2Q11 | 1,460 | +9.4% |
| 1Q11 | 1,354 | +0.3% |
| 4Q10 | 1,364 | - |
| 3Q10 | 1,344 | - |
| 2Q10 | 1,335 | - |
| 1Q10 | 1,350 | - |