| （単位：千ドル） | 営業利益 | 前年比（％） |
|---|---|---|
| 3Q23 | 67,629 | +13.6% |
| 2Q23 | 55,204 | +9.9% |
| 1Q23 | 61,854 | +21.1% |
| 3Q22 | 59,545 | +10.0% |
| 2Q22 | 50,215 | -10.8% |
| 1Q22 | 51,074 | +9.2% |
| 3Q21 | 54,116 | +129.8% |
| 2Q21 | 56,317 | +7.3% |
| 1Q21 | 46,751 | -29.4% |
| 4Q20 | 62,690 | -3.9% |
| 3Q20 | 23,553 | -63.3% |
| 2Q20 | 52,501 | -17.9% |
| 1Q20 | 66,193 | -6.2% |
| 4Q19 | 65,241 | -1.1% |
| 3Q19 | 64,136 | +1.9% |
| 2Q19 | 63,914 | +12.2% |
| 1Q19 | 70,534 | +9.5% |
| 4Q18 | 65,971 | -1.8% |
| 3Q18 | 62,923 | +21.6% |
| 2Q18 | 56,946 | +8.5% |
| 1Q18 | 64,418 | +24.5% |
| 4Q17 | 67,200 | +23.2% |
| 3Q17 | 51,736 | +11.3% |
| 2Q17 | 52,486 | +7.0% |
| 1Q17 | 51,734 | -6.7% |
| 4Q16 | 54,549 | +5.7% |
| 3Q16 | 46,472 | +4.9% |
| 2Q16 | 49,070 | +21.4% |
| 1Q16 | 55,446 | +26.6% |
| 4Q15 | 51,627 | +34.6% |
| 3Q15 | 44,295 | +13.8% |
| 2Q15 | 40,431 | +26.2% |
| 1Q15 | 43,806 | -3.6% |
| 4Q14 | 38,343 | +24.4% |
| 3Q14 | 38,925 | +13.9% |
| 2Q14 | 32,033 | -1.5% |
| 1Q14 | 45,453 | +46.4% |
| 4Q13 | 30,826 | -24.8% |
| 3Q13 | 34,173 | -7.0% |
| 2Q13 | 32,520 | -4.8% |
| 1Q13 | 31,047 | -9.3% |
| 4Q12 | 40,973 | - |
| 3Q12 | 36,729 | +47.9% |
| 2Q12 | 34,150 | +25.1% |
| 1Q12 | 34,224 | - |
| 3Q11 | 24,834 | - |
| 2Q11 | 27,288 | - |