| （単位：千ドル） | 営業利益 | 前年比（％） |
|---|---|---|
| 3Q18 | 44,229 | +28.9% |
| 2Q18 | 37,937 | -25.1% |
| 1Q18 | 13,519 | -29.9% |
| 4Q17 | 35,518 | +5.2% |
| 3Q17 | 34,318 | -16.9% |
| 2Q17 | 50,651 | -12.8% |
| 1Q17 | 19,296 | -20.6% |
| 4Q16 | 33,751 | -11.8% |
| 3Q16 | 41,303 | -0.3% |
| 2Q16 | 58,105 | +31.6% |
| 1Q16 | 24,311 | +13.6% |
| 4Q15 | 38,288 | +12.0% |
| 3Q15 | 41,416 | +8.5% |
| 2Q15 | 44,164 | -19.8% |
| 1Q15 | 21,406 | +112.7% |
| 4Q14 | 34,196 | +59.1% |
| 3Q14 | 38,172 | +73.8% |
| 2Q14 | 55,037 | +69.5% |
| 1Q14 | 10,062 | +395.9% |
| 4Q13 | 21,492 | -33.2% |
| 3Q13 | 21,968 | -216.0% |
| 2Q13 | 32,475 | +40.3% |
| 1Q13 | 2,029 | -145.3% |
| 4Q12 | 32,155 | +48.9% |
| 3Q12 | -18,934 | -231.8% |
| 2Q12 | 23,148 | - |
| 1Q12 | -4,480 | +4.4% |
| 4Q11 | 21,590 | - |
| 3Q11 | 14,364 | +112.4% |
| 1Q11 | -4,290 | - |
| 3Q10 | 6,763 | - |
| 2Q10 | 14,734 | - |