| （単位：千ドル） | 営業利益 | 前年比（％） |
|---|---|---|
| 1Q25 | 13,596 | +11.3% |
| 3Q24 | 14,928 | -1.3% |
| 2Q24 | 13,017 | -1.8% |
| 1Q24 | 12,218 | -1.4% |
| 3Q23 | 15,122 | +4.9% |
| 2Q23 | 13,250 | +7.2% |
| 1Q23 | 12,388 | -7.8% |
| 3Q22 | 14,421 | +4.6% |
| 2Q22 | 12,355 | +3.2% |
| 1Q22 | 13,438 | +6.2% |
| 3Q21 | 13,789 | +10.3% |
| 2Q21 | 11,976 | +79.4% |
| 1Q21 | 12,657 | +25.3% |
| 3Q20 | 12,497 | +1.8% |
| 2Q20 | 6,677 | -32.2% |
| 1Q20 | 10,101 | +0.4% |
| 4Q19 | 10,943 | +7.5% |
| 3Q19 | 12,274 | +7.3% |
| 2Q19 | 9,846 | -2.3% |
| 1Q19 | 10,066 | -0.1% |
| 4Q18 | 10,179 | -4.5% |
| 3Q18 | 11,435 | +16.1% |
| 2Q18 | 10,074 | +10.3% |
| 1Q18 | 10,074 | +10.3% |
| 4Q17 | 10,663 | +1.5% |
| 3Q17 | 9,852 | -5.6% |
| 2Q17 | 9,134 | -2.0% |
| 1Q17 | 9,135 | +13.6% |
| 4Q16 | 10,501 | +8.4% |
| 3Q16 | 10,438 | +11.7% |
| 2Q16 | 9,323 | +15.3% |
| 1Q16 | 8,038 | -19.4% |
| 4Q15 | 9,690 | +3.6% |
| 3Q15 | 9,341 | +1.8% |
| 2Q15 | 8,084 | +14.0% |
| 1Q15 | 9,974 | +34.2% |
| 4Q14 | 9,354 | +24.7% |
| 3Q14 | 9,177 | +7.5% |
| 2Q14 | 7,092 | +0.4% |
| 1Q14 | 7,434 | +11.4% |
| 4Q13 | 7,501 | +7.7% |
| 3Q13 | 8,541 | +0.9% |
| 2Q13 | 7,061 | +17.2% |
| 1Q13 | 6,675 | +14.2% |
| 4Q12 | 6,962 | - |
| 3Q12 | 8,463 | +27.4% |
| 2Q12 | 6,026 | -0.9% |
| 1Q12 | 5,846 | - |
| 3Q11 | 6,645 | - |
| 2Q11 | 6,084 | - |