| （単位：千ドル） | 営業利益 | 前年比（％） |
|---|---|---|
| 4Q23 | 1,750 | +185.5% |
| 3Q23 | -1,757 | -917.2% |
| 2Q23 | -968 | -420.5% |
| 1Q23 | -2,598 | +205.3% |
| 4Q22 | 613 | -44.1% |
| 3Q22 | 215 | -36.0% |
| 2Q22 | 302 | -83.6% |
| 1Q22 | -851 | -70.3% |
| 4Q21 | 1,097 | -115.2% |
| 3Q21 | 336 | -86.5% |
| 2Q21 | 1,842 | -281.1% |
| 1Q21 | -2,863 | +11.4% |
| 4Q20 | -7,238 | - |
| 3Q20 | 2,482 | +214.6% |
| 2Q20 | -1,017 | -143.3% |
| 1Q20 | -2,569 | -255.7% |
| 3Q19 | 789 | -105.8% |
| 2Q19 | 2,351 | -117.6% |
| 1Q19 | 1,650 | -112.8% |
| 4Q18 | -14,295 | +11.0% |
| 3Q18 | -13,554 | +26.6% |
| 2Q18 | -13,347 | +41.5% |
| 1Q18 | -12,847 | +75.9% |
| 4Q17 | -12,875 | +28.0% |
| 3Q17 | -10,703 | +173.0% |
| 2Q17 | -9,430 | +39.3% |
| 1Q17 | -7,302 | +45.3% |
| 4Q16 | -10,056 | +209.8% |
| 3Q16 | -3,921 | +2290.9% |
| 2Q16 | -6,771 | -1915.3% |
| 1Q16 | -5,025 | - |
| 4Q15 | -3,246 | - |
| 3Q15 | -164 | - |
| 2Q15 | 373 | - |