| （単位：千ドル） | 売上原価 | 前年比（％） |
|---|---|---|
| 4Q18 | 754,000 | +3.6% |
| 3Q18 | 712,000 | +4.7% |
| 2Q18 | 720,000 | +3.3% |
| 1Q18 | 702,000 | +1.0% |
| 4Q17 | 728,000 | +5.1% |
| 3Q17 | 680,000 | +3.5% |
| 2Q17 | 697,000 | +1.0% |
| 1Q17 | 695,000 | -2.3% |
| 4Q16 | 693,000 | -7.6% |
| 3Q16 | 657,000 | -9.3% |
| 2Q16 | 690,000 | -9.7% |
| 1Q16 | 711,000 | +2.9% |
| 4Q15 | 750,000 | +52.1% |
| 3Q15 | 724,000 | -10.0% |
| 2Q15 | 764,000 | -10.2% |
| 1Q15 | 691,000 | -14.3% |
| 4Q14 | 493,000 | -43.9% |
| 3Q14 | 804,000 | -5.9% |
| 2Q14 | 851,000 | -8.5% |
| 1Q14 | 806,000 | -8.8% |
| 4Q13 | 879,000 | -8.0% |
| 3Q13 | 854,000 | -7.4% |
| 2Q13 | 930,000 | +0.1% |
| 1Q13 | 884,000 | -5.6% |
| 4Q12 | 955,000 | +87.3% |
| 3Q12 | 922,000 | +98.3% |
| 2Q12 | 929,000 | +77.0% |
| 1Q12 | 936,000 | - |
| 4Q11 | 510,000 | - |
| 3Q11 | 465,000 | - |
| 2Q11 | 525,000 | - |