| （単位：千ドル） | 営業利益 | 前年比（％） |
|---|---|---|
| 3Q23 | 15 | -99.7% |
| 2Q23 | 2,757 | -20.2% |
| 1Q23 | 4,837 | +12.0% |
| 3Q22 | 4,725 | +229.5% |
| 2Q22 | 3,455 | +261.8% |
| 1Q22 | 4,320 | +39.4% |
| 3Q21 | 1,434 | -60.7% |
| 2Q21 | 955 | -74.1% |
| 1Q21 | 3,098 | -41.4% |
| 3Q20 | 3,649 | +13.1% |
| 2Q20 | 3,689 | -6.7% |
| 1Q20 | 5,289 | +16.9% |
| 3Q19 | 3,226 | -47.6% |
| 2Q19 | 3,954 | -23.8% |
| 1Q19 | 4,523 | -6.2% |
| 3Q18 | 6,155 | +0.7% |
| 2Q18 | 5,188 | -6.5% |
| 1Q18 | 4,821 | +580.9% |
| 3Q17 | 6,114 | +179.2% |
| 2Q17 | 5,551 | +71.6% |
| 1Q17 | 708 | -62.7% |
| 3Q16 | 2,190 | +1.7% |
| 2Q16 | 3,234 | +166.5% |
| 1Q16 | 1,896 | +229.2% |
| 3Q15 | 2,154 | +571.1% |
| 2Q15 | 1,213 | -579.3% |
| 1Q15 | 575 | - |
| 3Q14 | 321 | - |
| 2Q14 | -254 | - |