| （単位：千ドル） | 営業利益 | 前年比（％） |
|---|---|---|
| 1Q25 | 3,910 | +12.9% |
| 3Q24 | 3,438 | -7.4% |
| 2Q24 | 3,320 | +5.1% |
| 1Q24 | 3,462 | -24.5% |
| 4Q23 | 3,591 | -17.4% |
| 3Q23 | 3,713 | -2.2% |
| 2Q23 | 3,159 | -0.1% |
| 1Q23 | 4,588 | +56.6% |
| 4Q22 | 4,347 | +29.7% |
| 3Q22 | 3,797 | +7.4% |
| 2Q22 | 3,161 | -2.2% |
| 1Q22 | 2,930 | -17.7% |
| 4Q21 | 3,351 | +0.3% |
| 3Q21 | 3,535 | +11.8% |
| 2Q21 | 3,231 | +13.5% |
| 1Q21 | 3,560 | +43.2% |
| 4Q20 | 3,341 | +17.4% |
| 3Q20 | 3,162 | -8.5% |
| 2Q20 | 2,847 | -17.0% |
| 1Q20 | 2,486 | -4.1% |
| 4Q19 | 2,846 | +4.8% |
| 3Q19 | 3,455 | +13.0% |
| 2Q19 | 3,432 | +43.5% |
| 1Q19 | 2,592 | +3.8% |
| 4Q18 | 2,715 | +7.8% |
| 3Q18 | 3,057 | +4.1% |
| 2Q18 | 2,391 | -21.1% |
| 1Q18 | 2,497 | +20.6% |
| 4Q17 | 2,518 | +6.2% |
| 3Q17 | 2,937 | +21.0% |
| 2Q17 | 3,029 | +23.4% |
| 1Q17 | 2,071 | -3.6% |
| 4Q16 | 2,370 | +47.2% |
| 3Q16 | 2,427 | +27.2% |
| 2Q16 | 2,454 | +42.8% |
| 1Q16 | 2,149 | +10.9% |
| 4Q15 | 1,610 | -5.7% |
| 3Q15 | 1,908 | -10.8% |
| 2Q15 | 1,719 | -22.4% |
| 1Q15 | 1,938 | +4.2% |
| 4Q14 | 1,708 | -4.1% |
| 3Q14 | 2,138 | +2.7% |
| 2Q14 | 2,214 | +25.0% |
| 1Q14 | 1,859 | +8.8% |
| 4Q13 | 1,781 | -1.2% |
| 3Q13 | 2,082 | +121.5% |
| 2Q13 | 1,771 | +20.8% |
| 1Q13 | 1,708 | +32.9% |
| 4Q12 | 1,803 | - |
| 3Q12 | 940 | -39.2% |
| 2Q12 | 1,466 | +12.5% |
| 1Q12 | 1,285 | - |
| 3Q11 | 1,547 | - |
| 2Q11 | 1,303 | - |