| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2024/12 | 5,283 | +4.5% |
| 2023/12 | 5,055 | -2.2% |
| 2022/12 | 5,171 | -10.1% |
| 2021/12 | 5,749 | -11.9% |
| 2020/12 | 6,524 | -6.1% |
| 2019/12 | 6,945 | +2.3% |
| 2018/12 | 6,786 | +8.6% |
| 2017/12 | 6,251 | -13.9% |
| 2016/12 | 7,263 | +6.4% |
| 2015/12 | 6,824 | +1.8% |
| 2014/12 | 6,702 | -1.0% |
| 2013/12 | 6,768 | -1.3% |
| 2012/12 | 6,858 | -8.4% |
| 2011/12 | 7,486 | - |