| （単位：千ドル） | 営業利益 | 前年比（％） |
|---|---|---|
| 3Q21 | 18,622 | +16.9% |
| 2Q21 | 24,238 | +54.5% |
| 1Q21 | 23,330 | +157.4% |
| 3Q20 | 15,929 | -27.8% |
| 2Q20 | 15,685 | -23.6% |
| 1Q20 | 9,064 | +53.9% |
| 3Q19 | 22,072 | +35.8% |
| 2Q19 | 20,541 | -973.7% |
| 1Q19 | 5,891 | -128.3% |
| 3Q18 | 16,248 | +17.0% |
| 2Q18 | -2,351 | -126.4% |
| 1Q18 | -20,835 | -429.9% |
| 3Q17 | 13,882 | +53.8% |
| 2Q17 | 8,896 | -66.8% |
| 1Q17 | 6,316 | +91.6% |
| 3Q16 | 9,026 | -52.2% |
| 2Q16 | 26,827 | -41.7% |
| 1Q16 | 3,297 | -87.0% |
| 3Q15 | 18,873 | - |
| 2Q15 | 45,996 | - |
| 1Q15 | 25,348 | - |