| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2024/12 | 10,390 | -5.3% |
| 2023/12 | 10,975 | -4.2% |
| 2022/12 | 11,462 | -11.5% |
| 2021/12 | 12,946 | +114.0% |
| 2020/12 | 6,050 | -1.8% |
| 2019/12 | 6,158 | -25.0% |
| 2018/12 | 8,209 | -43.7% |
| 2017/12 | 14,591 | +76.0% |
| 2016/9 | 8,288 | +10.0% |
| 2015/9 | 7,533 | -53.3% |
| 2014/9 | 16,139 | +14.7% |
| 2013/9 | 14,065 | +8.2% |
| 2012/9 | 12,994 | +6.4% |
| 2011/9 | 12,210 | - |