| （単位：千ドル） | 営業利益 | 前年比（％） |
|---|---|---|
| 3Q18 | 32,600 | -44.7% |
| 1Q18 | 16,700 | +29.5% |
| 1Q18 | 27,800 | -32.5% |
| 4Q17 | -4,300 | -108.1% |
| 3Q17 | 58,900 | +47.6% |
| 2Q17 | 12,900 | -20.9% |
| 1Q17 | 41,200 | +44.6% |
| 4Q16 | 53,400 | -2.4% |
| 3Q16 | 39,900 | +30.4% |
| 2Q16 | 16,300 | +4.5% |
| 1Q16 | 28,500 | +3.6% |
| 4Q15 | 54,700 | +431.1% |
| 3Q15 | 30,600 | +163.8% |
| 2Q15 | 15,600 | -54.7% |
| 1Q15 | 27,500 | -523.1% |
| 4Q14 | 10,300 | -547.8% |
| 3Q14 | 11,600 | - |
| 2Q14 | 34,400 | +211.5% |
| 1Q14 | -6,500 | +152.0% |
| 4Q13 | -2,300 | -12.6% |
| 2Q13 | 11,042 | +200.5% |
| 1Q13 | -2,579 | -205.6% |
| 4Q12 | -2,633 | -117.4% |
| 3Q12 | -60 | -97.5% |
| 2Q12 | 3,674 | +2140.2% |
| 1Q12 | 2,443 | - |
| 4Q11 | 15,130 | - |
| 3Q11 | -2,391 | - |
| 2Q11 | 164 | - |