| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2025/12 | 3,380 | +6.4% |
| 2024/12 | 3,177 | +5.6% |
| 2023/12 | 3,008 | +3.9% |
| 2022/12 | 2,896 | -5.6% |
| 2021/12 | 3,068 | -21.9% |
| 2020/12 | 3,929 | -19.1% |
| 2019/12 | 4,858 | +35.8% |
| 2018/12 | 3,577 | -19.0% |
| 2017/12 | 4,414 | +42.6% |
| 2016/12 | 3,095 | +3.2% |
| 2015/12 | 2,998 | +25.5% |
| 2014/12 | 2,388 | +23.6% |
| 2013/12 | 1,932 | -5.6% |
| 2012/12 | 2,047 | -8.9% |
| 2011/12 | 2,248 | - |