| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2024/12 | 6,684 | +4.7% |
| 2023/12 | 6,383 | +5.3% |
| 2022/12 | 6,060 | -4.4% |
| 2021/12 | 6,336 | +0.9% |
| 2020/12 | 6,279 | -16.2% |
| 2019/12 | 7,497 | -18.4% |
| 2018/12 | 9,183 | +2.0% |
| 2017/12 | 8,999 | +30.2% |
| 2016/12 | 6,914 | -24.7% |
| 2015/12 | 9,179 | -24.7% |
| 2014/12 | 12,183 | -18.0% |
| 2013/12 | 14,856 | -10.2% |
| 2012/12 | 16,537 | +13.8% |
| 2011/12 | 14,534 | - |