| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2024/12 | 1,534 | -4.1% |
| 2023/12 | 1,600 | -1.7% |
| 2022/12 | 1,627 | -5.4% |
| 2021/12 | 1,719 | -13.6% |
| 2020/12 | 1,990 | -4.7% |
| 2019/12 | 2,088 | +1.2% |
| 2018/12 | 2,064 | +10.7% |
| 2017/12 | 1,864 | -1.8% |
| 2016/12 | 1,898 | +5.9% |
| 2015/12 | 1,793 | +11.5% |
| 2014/12 | 1,608 | -24.2% |
| 2013/12 | 2,120 | -55.4% |
| 2012/12 | 4,755 | -55.5% |
| 2011/12 | 10,697 | -7.1% |
| 2010/12 | 11,517 | - |