| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2024/12 | 3,198 | -8.1% |
| 2023/12 | 3,480 | +4.9% |
| 2022/12 | 3,319 | -43.5% |
| 2021/12 | 5,874 | +25.1% |
| 2020/12 | 4,696 | -23.9% |
| 2019/12 | 6,174 | -11.4% |
| 2018/12 | 6,969 | +7.3% |
| 2017/12 | 6,492 | +4.3% |
| 2016/12 | 6,226 | -20.0% |
| 2015/12 | 7,780 | +54.1% |
| 2014/12 | 5,049 | +19.4% |
| 2013/12 | 4,227 | +24.7% |
| 2012/12 | 3,390 | +31.9% |
| 2011/12 | 2,571 | - |