| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 4Q19 | 56,522 | +9.7% |
| 3Q19 | 57,331 | +37.2% |
| 2Q19 | 57,828 | +37.1% |
| 1Q19 | 59,342 | +41.2% |
| 4Q18 | 51,514 | +20.2% |
| 3Q18 | 41,774 | +48.4% |
| 2Q18 | 42,176 | +51.9% |
| 1Q18 | 42,040 | +54.1% |
| 4Q17 | 42,843 | +58.7% |
| 3Q17 | 28,149 | +8.4% |
| 2Q17 | 27,767 | +9.4% |
| 1Q17 | 27,284 | +9.4% |
| 4Q16 | 26,989 | +8.5% |
| 3Q16 | 25,978 | +4.0% |
| 2Q16 | 25,382 | +3.4% |
| 1Q16 | 24,933 | +4.1% |
| 4Q15 | 24,865 | +11.0% |
| 3Q15 | 24,987 | +20.2% |
| 2Q15 | 24,557 | +32.8% |
| 1Q15 | 23,958 | +61.1% |
| 4Q14 | 22,398 | +119.4% |
| 3Q14 | 20,796 | +161.2% |
| 2Q14 | 18,490 | +208.2% |
| 1Q14 | 14,870 | +193.4% |
| 4Q13 | 10,210 | - |
| 3Q13 | 7,963 | +227.0% |
| 2Q13 | 6,000 | - |
| 1Q13 | 5,069 | - |
| 3Q12 | 2,435 | - |