| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2024/12 | 7,716 | +8.7% |
| 2023/12 | 7,101 | -29.2% |
| 2022/12 | 10,034 | +8.0% |
| 2021/12 | 9,289 | -4.6% |
| 2020/12 | 9,741 | -42.6% |
| 2019/12 | 16,985 | -48.8% |
| 2018/12 | 33,189 | -2.4% |
| 2017/12 | 34,016 | -0.7% |
| 2016/12 | 34,247 | -3.1% |
| 2015/12 | 35,355 | -4.0% |
| 2014/12 | 36,822 | -2.8% |
| 2013/12 | 37,870 | -2.2% |
| 2012/12 | 38,715 | +4.4% |
| 2011/12 | 37,069 | - |