| （単位：千ドル） | 営業利益 | 前年比（％） |
|---|---|---|
| 3Q23 | 24,027 | +19.1% |
| 2Q23 | 20,622 | -44.8% |
| 1Q23 | 21,351 | -15.3% |
| 3Q22 | 20,175 | +0.7% |
| 2Q22 | 37,339 | +98.2% |
| 1Q22 | 25,195 | +5.0% |
| 3Q21 | 20,037 | +10.0% |
| 2Q21 | 18,837 | +7.1% |
| 1Q21 | 23,992 | +27.1% |
| 3Q20 | 18,213 | - |
| 2Q20 | 17,593 | -0.5% |
| 1Q20 | 18,880 | +13.3% |
| 2Q19 | 17,680 | +11.2% |
| 1Q19 | 16,668 | +17.4% |
| 3Q18 | 17,184 | +35.0% |
| 2Q18 | 15,897 | +10.0% |
| 1Q18 | 14,200 | +6.3% |
| 3Q17 | 12,733 | -0.0% |
| 2Q17 | 14,450 | +18.3% |
| 1Q17 | 13,356 | +16.8% |
| 3Q16 | 12,737 | +13.9% |
| 2Q16 | 12,218 | +57.2% |
| 1Q16 | 11,437 | +351.2% |
| 3Q15 | 11,185 | +12.1% |
| 2Q15 | 7,772 | -15.4% |
| 1Q15 | 2,535 | -75.1% |
| 3Q14 | 9,975 | -45.6% |
| 2Q14 | 9,184 | -15.0% |
| 1Q14 | 10,177 | +19.7% |
| 3Q13 | 18,350 | +336.2% |
| 2Q13 | 10,808 | - |
| 1Q13 | 8,501 | +19.3% |
| 3Q12 | 4,207 | -32.9% |
| 1Q12 | 7,128 | - |
| 3Q11 | 6,269 | - |