| （単位：千ドル） | 営業利益 | 前年比（％） |
|---|---|---|
| 4Q23 | -1,652 | -64.0% |
| 3Q23 | 1,997 | -132.9% |
| 2Q23 | -2,364 | +62.1% |
| 1Q23 | -4,341 | -53.9% |
| 4Q22 | -4,593 | -27.2% |
| 3Q22 | -6,076 | -54.5% |
| 2Q22 | -1,458 | -87.4% |
| 1Q22 | -9,407 | +4.5% |
| 4Q21 | -6,305 | -14.8% |
| 3Q21 | -13,359 | +207.1% |
| 2Q21 | -11,578 | +125.9% |
| 1Q21 | -9,002 | +119.6% |
| 4Q20 | -7,401 | -31.7% |
| 3Q20 | -4,350 | -28.2% |
| 2Q20 | -5,126 | - |
| 1Q20 | -4,099 | - |
| 4Q19 | -10,841 | +174.4% |
| 3Q19 | -6,055 | +48.9% |
| 4Q18 | -3,951 | +1.8% |
| 3Q18 | -4,066 | +27.8% |
| 2Q18 | -5,128 | +50.3% |
| 1Q18 | -6,501 | +123.2% |
| 4Q17 | -3,881 | +39.9% |
| 3Q17 | -3,181 | +23.7% |
| 2Q17 | -3,411 | +158.2% |
| 1Q17 | -2,913 | +16.1% |
| 4Q16 | -2,775 | +14.6% |
| 3Q16 | -2,571 | +672.1% |
| 2Q16 | -1,321 | -52.7% |
| 1Q16 | -2,510 | -34.9% |
| 4Q15 | -2,422 | -48.3% |
| 3Q15 | -333 | -92.4% |
| 2Q15 | -2,792 | -31.3% |
| 1Q15 | -3,857 | +10.7% |
| 4Q14 | -4,682 | +110.7% |
| 3Q14 | -4,396 | -56.0% |
| 2Q14 | -4,065 | -58.7% |
| 1Q14 | -3,483 | - |
| 4Q13 | -2,222 | - |
| 3Q13 | -9,980 | - |
| 2Q13 | -9,843 | - |
| 4Q11 | -7,046 | - |
| 3Q11 | 16,392 | - |
| 2Q11 | -8,451 | - |