| （単位：千ドル） | 営業利益 | 前年比（％） |
|---|---|---|
| 2Q23 | 1,592 | -40.4% |
| 1Q23 | 1,605 | -42.4% |
| 4Q22 | 2,048 | -28.7% |
| 3Q22 | 2,331 | -23.2% |
| 2Q22 | 2,673 | +4.3% |
| 1Q22 | 2,787 | +15.7% |
| 4Q21 | 2,871 | +24.2% |
| 3Q21 | 3,036 | +33.0% |
| 2Q21 | 2,563 | -14.4% |
| 1Q21 | 2,409 | -35.4% |
| 4Q20 | 2,312 | - |
| 3Q20 | 2,283 | - |
| 2Q20 | 2,993 | - |
| 1Q20 | 3,731 | - |
| 4Q17 | 5,723 | - |
| 3Q12 | 532 | -13.8% |
| 2Q12 | 440 | -24.3% |
| 1Q12 | 332 | - |
| 4Q11 | 474 | - |
| 3Q11 | 617 | - |
| 2Q11 | 581 | - |