| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2025/9 | 2,742 | -9.5% |
| 2024/9 | 3,029 | -39.6% |
| 2023/9 | 5,012 | +189.9% |
| 2022/9 | 1,729 | +23.7% |
| 2021/9 | 1,398 | +11.1% |
| 2020/9 | 1,258 | -25.6% |
| 2019/9 | 1,690 | -8.8% |
| 2018/9 | 1,854 | -25.6% |
| 2017/9 | 2,493 | -16.2% |
| 2016/9 | 2,974 | -11.4% |
| 2015/9 | 3,357 | +39.3% |
| 2014/9 | 2,410 | -9.6% |
| 2013/9 | 2,667 | -6.7% |
| 2012/9 | 2,858 | +1.6% |
| 2011/9 | 2,814 | - |