| （単位：千ドル） | 経常（税引前）利益 | 前年比（％） |
|---|---|---|
| 3Q18 | 34,433 | -0.6% |
| 2Q18 | 35,480 | -8.6% |
| 1Q18 | 33,724 | +24.0% |
| 3Q17 | 34,653 | +27.7% |
| 2Q17 | 38,799 | +45.0% |
| 1Q17 | 27,198 | +21.1% |
| 3Q16 | 27,130 | +37.9% |
| 2Q16 | 26,750 | +17.8% |
| 1Q16 | 22,460 | +25.7% |
| 3Q15 | 19,670 | +10.4% |
| 2Q15 | 22,703 | +26.8% |
| 1Q15 | 17,867 | +35.1% |
| 3Q14 | 17,813 | +40.1% |
| 2Q14 | 17,898 | +16.6% |
| 1Q14 | 13,221 | +4.1% |
| 3Q13 | 12,714 | +16.5% |
| 2Q13 | 15,356 | +43.0% |
| 1Q13 | 12,699 | -3.9% |
| 3Q12 | 10,909 | +391.2% |
| 2Q12 | 10,739 | - |
| 1Q12 | 13,212 | +20.8% |
| 3Q11 | 2,221 | -71.1% |
| 1Q11 | 10,938 | - |
| 3Q10 | 7,682 | - |
| 2Q10 | 13,714 | - |