| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2025/12 | 3,774 | +1.0% |
| 2024/12 | 3,738 | +2.8% |
| 2023/12 | 3,636 | -10.6% |
| 2022/12 | 4,066 | +14.4% |
| 2021/12 | 3,554 | +2.6% |
| 2020/12 | 3,465 | +13.6% |
| 2019/12 | 3,049 | +106.4% |
| 2018/12 | 1,477 | -5.4% |
| 2017/12 | 1,562 | +3.1% |
| 2016/12 | 1,515 | -1783.3% |
| 2015/12 | -90 | -104.8% |
| 2014/12 | 1,870 | -19.5% |
| 2013/12 | 2,322 | -24.0% |
| 2012/12 | 3,054 | +27.0% |
| 2011/12 | 2,404 | - |