| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 1Q20 | 22,900 | -6.5% |
| 4Q19 | 24,800 | +6.4% |
| 3Q19 | 24,700 | -6.8% |
| 2Q19 | 24,400 | +4.3% |
| 1Q19 | 24,500 | +16.1% |
| 4Q18 | 23,300 | -2.9% |
| 3Q18 | 26,500 | +11.3% |
| 2Q18 | 23,400 | +8.8% |
| 1Q18 | 21,100 | -2.8% |
| 4Q17 | 24,000 | -5.1% |
| 3Q17 | 23,800 | +16.1% |
| 2Q17 | 21,500 | -0.5% |
| 1Q17 | 21,700 | -11.4% |
| 4Q16 | 25,300 | +20.5% |
| 3Q16 | 20,500 | -21.5% |
| 2Q16 | 21,600 | -21.5% |
| 1Q16 | 24,500 | +3.4% |
| 4Q15 | 21,000 | -14.6% |
| 3Q15 | 26,100 | +2.8% |
| 2Q15 | 27,500 | +22.3% |
| 1Q15 | 23,700 | +99.1% |
| 4Q14 | 24,600 | +104.0% |
| 3Q14 | 25,400 | +116.1% |
| 2Q14 | 22,494 | +89.3% |
| 1Q14 | 11,906 | +2.6% |
| 4Q13 | 12,056 | -12.3% |
| 3Q13 | 11,752 | -1.8% |
| 2Q13 | 11,882 | -4.8% |
| 1Q13 | 11,599 | -11.0% |
| 4Q12 | 13,743 | -5.2% |
| 3Q12 | 11,965 | -17.7% |
| 2Q12 | 12,475 | -13.9% |
| 1Q12 | 13,026 | -11.3% |
| 4Q11 | 14,499 | -0.0% |
| 3Q11 | 14,545 | -10.1% |
| 2Q11 | 14,491 | - |
| 1Q11 | 14,688 | - |
| 4Q10 | 14,502 | - |
| 3Q10 | 16,188 | - |