| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 4Q23 | 67 | -79.8% |
| 3Q23 | 54 | -85.2% |
| 2Q23 | 66 | -81.5% |
| 1Q23 | 67 | -82.2% |
| 4Q22 | 331 | -41.1% |
| 3Q22 | 366 | -3.7% |
| 2Q22 | 356 | -3.3% |
| 1Q22 | 376 | +5.3% |
| 4Q21 | 562 | +42.6% |
| 3Q21 | 380 | -28.2% |
| 2Q21 | 368 | -32.2% |
| 1Q21 | 357 | -35.1% |
| 4Q20 | 394 | -78.9% |
| 3Q20 | 529 | +76.3% |
| 2Q20 | 543 | +35.8% |
| 1Q20 | 550 | +43.6% |
| 4Q19 | 1,871 | +263.3% |
| 3Q19 | 300 | -50.0% |
| 2Q19 | 400 | -33.3% |
| 1Q19 | 383 | -38.2% |
| 4Q18 | 515 | -22.4% |
| 3Q18 | 600 | -14.3% |
| 2Q18 | 600 | -25.0% |
| 1Q18 | 620 | -21.9% |
| 4Q17 | 664 | - |
| 3Q17 | 700 | - |
| 2Q17 | 800 | - |
| 1Q17 | 794 | - |