| （単位：千ドル） | 経常（税引前）利益 | 前年比（％） |
|---|---|---|
| 4Q23 | 6,071 | -38.7% |
| 3Q23 | 7,632 | -34.8% |
| 2Q23 | 9,053 | -12.0% |
| 1Q23 | 11,619 | +1.4% |
| 4Q22 | 9,905 | -31.4% |
| 3Q22 | 11,704 | -9.2% |
| 2Q22 | 10,291 | -24.5% |
| 1Q22 | 11,462 | -19.7% |
| 4Q21 | 14,440 | +29.8% |
| 3Q21 | 12,891 | +42.8% |
| 2Q21 | 13,628 | +97.4% |
| 1Q21 | 14,280 | +41.0% |
| 4Q20 | 11,123 | +26.2% |
| 3Q20 | 9,028 | -18.0% |
| 2Q20 | 6,904 | -522.3% |
| 1Q20 | 10,127 | +33.7% |
| 4Q19 | 8,815 | +38.2% |
| 3Q19 | 11,013 | +51.9% |
| 2Q19 | -1,635 | -122.2% |
| 1Q19 | 7,574 | +4.9% |
| 4Q18 | 6,378 | -11.7% |
| 3Q18 | 7,250 | +3.7% |
| 2Q18 | 7,379 | +19.0% |
| 1Q18 | 7,218 | +27.4% |
| 4Q17 | 7,220 | +21.2% |
| 3Q17 | 6,992 | +24.5% |
| 2Q17 | 6,199 | +6.5% |
| 1Q17 | 5,664 | -4.2% |
| 4Q16 | 5,957 | -9.0% |
| 3Q16 | 5,617 | -1.9% |
| 2Q16 | 5,821 | +49.3% |
| 1Q16 | 5,913 | +21.0% |
| 4Q15 | 6,546 | +61.5% |
| 3Q15 | 5,728 | +24.1% |
| 2Q15 | 3,898 | -14.1% |
| 1Q15 | 4,887 | +3.1% |
| 4Q14 | 4,054 | -3.6% |
| 3Q14 | 4,614 | -20.5% |
| 2Q14 | 4,536 | -23.8% |
| 1Q14 | 4,739 | -18.9% |
| 4Q13 | 4,205 | -23.9% |
| 3Q13 | 5,805 | +16.6% |
| 2Q13 | 5,951 | -1.6% |
| 1Q13 | 5,840 | +1.6% |
| 4Q12 | 5,526 | -19.3% |
| 3Q12 | 4,977 | -16.4% |
| 2Q12 | 6,050 | +394.7% |
| 1Q12 | 5,746 | - |
| 4Q11 | 6,846 | - |
| 3Q11 | 5,952 | - |
| 2Q11 | 1,223 | - |