| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2024/12 | 6,542 | -10.8% |
| 2023/12 | 7,331 | -3.8% |
| 2022/12 | 7,624 | -10.0% |
| 2021/12 | 8,474 | -21.1% |
| 2020/12 | 10,746 | -6.1% |
| 2019/12 | 11,440 | -9.6% |
| 2018/12 | 12,653 | -2.3% |
| 2017/12 | 12,947 | -4.2% |
| 2016/12 | 13,515 | -4.3% |
| 2015/12 | 14,119 | +9.9% |
| 2014/12 | 12,850 | +25.2% |
| 2013/12 | 10,262 | +9.2% |
| 2012/12 | 9,396 | -2.6% |
| 2011/12 | 9,649 | - |