| （単位：千ドル） | 営業利益 | 前年比（％） |
|---|---|---|
| 3Q21 | 100,619 | +10.2% |
| 1Q21 | 101,728 | +40.9% |
| 1Q21 | 68,383 | +38.6% |
| 3Q20 | 91,343 | +49.8% |
| 2Q20 | 72,212 | +34.6% |
| 1Q20 | 49,350 | +64.4% |
| 4Q19 | 36,611 | +94.0% |
| 3Q19 | 60,967 | +0.1% |
| 2Q19 | 53,653 | -11.7% |
| 1Q19 | 30,023 | -8.5% |
| 4Q18 | 18,871 | -23.6% |
| 3Q18 | 60,922 | +30.5% |
| 2Q18 | 60,744 | +34.6% |
| 1Q18 | 32,796 | +44.9% |
| 4Q17 | 24,705 | -5.5% |
| 3Q17 | 46,696 | +2.0% |
| 2Q17 | 45,137 | +10.3% |
| 1Q17 | 22,630 | -15.1% |
| 4Q16 | 26,136 | +16.2% |
| 3Q16 | 45,777 | +29.9% |
| 2Q16 | 40,924 | +16.9% |
| 1Q16 | 26,641 | +63.7% |
| 4Q15 | 22,485 | +46.8% |
| 3Q15 | 35,249 | +9.4% |
| 2Q15 | 35,009 | +9.0% |
| 1Q15 | 16,277 | -17.0% |
| 4Q14 | 15,320 | +28.7% |
| 3Q14 | 32,218 | +4.3% |
| 2Q14 | 32,133 | +8.3% |
| 1Q14 | 19,606 | +117.5% |
| 4Q13 | 11,903 | -1370.3% |
| 3Q13 | 30,885 | +40.5% |
| 2Q13 | 29,678 | +9.3% |
| 1Q13 | 9,013 | -33.3% |
| 4Q12 | -937 | -116.5% |
| 3Q12 | 21,990 | -11.6% |
| 2Q12 | 27,148 | -13.0% |
| 1Q12 | 13,508 | +10.0% |
| 4Q11 | 5,684 | - |
| 3Q11 | 24,882 | -14.9% |
| 2Q11 | 31,208 | -8.0% |
| 1Q11 | 12,283 | - |
| 3Q10 | 29,252 | - |
| 2Q10 | 33,937 | - |