| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2024/12 | 1,855 | -28.6% |
| 2023/12 | 2,599 | -12.9% |
| 2022/12 | 2,984 | -5.2% |
| 2021/12 | 3,148 | +1.3% |
| 2020/12 | 3,109 | +29.4% |
| 2019/12 | 2,403 | +66.3% |
| 2018/12 | 1,445 | -20.2% |
| 2017/12 | 1,811 | -0.3% |
| 2016/12 | 1,817 | +6.9% |
| 2015/12 | 1,699 | +20.1% |
| 2014/12 | 1,415 | +154.0% |
| 2013/12 | 557 | -25.1% |
| 2012/12 | 744 | -19.3% |
| 2011/12 | 922 | - |