| （単位：千ドル） | 営業利益 | 前年比（％） |
|---|---|---|
| 4Q23 | -2,650 | -50.4% |
| 3Q23 | -1,180 | -47.9% |
| 2Q23 | -893 | -71.6% |
| 1Q23 | -1,686 | -53.3% |
| 4Q22 | -5,340 | +14.9% |
| 3Q22 | -2,266 | -6.0% |
| 2Q22 | -3,141 | +57.5% |
| 1Q22 | -3,608 | +123.8% |
| 4Q21 | -4,649 | +62.5% |
| 3Q21 | -2,410 | +121.9% |
| 2Q21 | -1,994 | +59.5% |
| 1Q21 | -1,612 | -37.6% |
| 4Q20 | -2,861 | +322.6% |
| 3Q20 | -1,086 | +91.9% |
| 2Q20 | -1,250 | +161.5% |
| 1Q20 | -2,582 | +507.5% |
| 4Q19 | -677 | -80.6% |
| 3Q19 | -566 | -44.2% |
| 2Q19 | -478 | -16.8% |
| 1Q19 | -425 | +224.9% |
| 4Q18 | -3,496 | - |
| 3Q18 | -1,014 | - |
| 2Q18 | -575 | - |
| 1Q18 | -131 | - |
| 3Q15 | -132 | +96.0% |
| 2Q15 | -130 | +5.7% |
| 3Q14 | -68 | -22.8% |
| 2Q14 | -123 | +115.7% |
| 1Q14 | -177 | +200.7% |
| 4Q13 | -116 | +156.5% |
| 2Q13 | -88 | - |
| 1Q13 | -57 | +395.0% |
| 4Q12 | -59 | - |
| 3Q12 | -46 | - |
| 1Q12 | -12 | - |