| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2025/12 | 22,458 | -7.2% |
| 2024/12 | 24,205 | +4.9% |
| 2023/12 | 23,076 | +2.8% |
| 2022/12 | 22,442 | -6.4% |
| 2021/12 | 23,977 | +15.8% |
| 2020/12 | 20,712 | +13.1% |
| 2019/12 | 18,317 | +1.2% |
| 2018/12 | 18,095 | +85.7% |
| 2017/12 | 9,745 | +16.2% |
| 2016/12 | 8,384 | +43.0% |
| 2015/12 | 5,863 | -2.7% |
| 2014/12 | 6,028 | +3.2% |
| 2013/12 | 5,843 | +3.7% |
| 2012/12 | 5,633 | +13.6% |
| 2011/12 | 4,960 | - |