| （単位：千ドル） | 営業費用 | 前年比（％） |
|---|---|---|
| 1Q21 | 77,000 | -14.2% |
| 4Q20 | 100,300 | +1.2% |
| 3Q20 | 86,400 | -6.6% |
| 2Q20 | 67,700 | -32.9% |
| 1Q20 | 89,700 | -7.9% |
| 4Q19 | 99,100 | +5.0% |
| 3Q19 | 92,500 | -0.2% |
| 2Q19 | 100,900 | +1.1% |
| 1Q19 | 97,400 | -2.9% |
| 4Q18 | 94,374 | -11.0% |
| 3Q18 | 92,646 | -1.0% |
| 2Q18 | 99,770 | +4.6% |
| 1Q18 | 100,265 | +21.8% |
| 4Q17 | 106,071 | +49.6% |
| 3Q17 | 93,558 | +35.5% |
| 2Q17 | 95,399 | +31.2% |
| 1Q17 | 82,349 | +17.0% |
| 4Q16 | 70,921 | +2.0% |
| 3Q16 | 69,041 | -17.9% |
| 2Q16 | 72,730 | +0.4% |
| 1Q16 | 70,405 | +0.8% |
| 4Q15 | 69,524 | -1.3% |
| 3Q15 | 84,087 | +20.0% |
| 2Q15 | 72,446 | +0.4% |
| 1Q15 | 69,827 | +3.2% |
| 4Q14 | 70,469 | +6.6% |
| 3Q14 | 70,059 | +6.7% |
| 2Q14 | 72,122 | +9.1% |
| 1Q14 | 67,680 | +3.1% |
| 4Q13 | 66,113 | +2.5% |
| 3Q13 | 65,633 | +2.9% |
| 2Q13 | 66,119 | -1.8% |
| 1Q13 | 65,640 | -2.0% |
| 4Q12 | 64,493 | -5.3% |
| 3Q12 | 63,762 | -1.1% |
| 2Q12 | 67,354 | -8.0% |
| 1Q12 | 66,984 | - |
| 4Q11 | 68,078 | - |
| 3Q11 | 64,490 | - |
| 2Q11 | 73,230 | - |