| （単位：ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 1Q20 | 544,000 | -2.7% |
| 4Q19 | 548,000 | -8.5% |
| 3Q19 | 548,000 | -11.6% |
| 2Q19 | 565,000 | -10.3% |
| 1Q19 | 559,000 | -9.8% |
| 4Q18 | 599,000 | -9.4% |
| 3Q18 | 620,000 | -9.8% |
| 2Q18 | 630,000 | -9.5% |
| 1Q18 | 620,000 | -11.2% |
| 4Q17 | 661,000 | -4.3% |
| 3Q17 | 687,000 | +0.3% |
| 2Q17 | 696,000 | +2.1% |
| 1Q17 | 698,000 | +4.6% |
| 4Q16 | 691,000 | +4.7% |
| 3Q16 | 685,000 | +9.4% |
| 2Q16 | 682,000 | +8.4% |
| 1Q16 | 667,000 | +6.2% |
| 4Q15 | 660,000 | +6.5% |
| 3Q15 | 626,000 | - |
| 2Q15 | 629,000 | - |
| 1Q15 | 628,000 | +29.2% |
| 4Q14 | 620,000 | +28.9% |
| 1Q14 | 486,000 | -1.1% |
| 4Q13 | 480,886 | +1.7% |
| 3Q13 | 491,218 | +4.0% |
| 2Q13 | 488,682 | +4.0% |
| 1Q13 | 491,214 | +4.8% |
| 4Q12 | 472,960 | +4.7% |
| 3Q12 | 472,321 | +6.0% |
| 2Q12 | 470,093 | - |
| 1Q12 | 468,626 | - |
| 4Q11 | 451,525 | - |
| 3Q11 | 445,604 | - |