| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2025/12 | 4,138 | -17.3% |
| 2024/12 | 5,003 | -6.5% |
| 2023/12 | 5,351 | +2.5% |
| 2022/12 | 5,219 | +3.7% |
| 2021/12 | 5,033 | -5.9% |
| 2020/12 | 5,346 | -3.1% |
| 2019/12 | 5,515 | +45.7% |
| 2018/12 | 3,786 | -5.5% |
| 2017/12 | 4,007 | +2.6% |
| 2016/12 | 3,904 | -0.7% |
| 2015/12 | 3,932 | -8.9% |
| 2014/12 | 4,314 | -5.4% |
| 2013/12 | 4,562 | +5.5% |
| 2012/12 | 4,324 | +2.6% |
| 2011/12 | 4,216 | - |