| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2024/12 | 1,607 | +5.7% |
| 2023/12 | 1,520 | -43.9% |
| 2022/12 | 2,709 | -33.4% |
| 2021/12 | 4,066 | -44.1% |
| 2020/12 | 7,271 | -23.3% |
| 2019/12 | 9,478 | -11.4% |
| 2018/12 | 10,701 | -4.6% |
| 2017/12 | 11,214 | -3.5% |
| 2016/12 | 11,619 | -9.7% |
| 2015/12 | 12,864 | -8.2% |
| 2014/12 | 14,018 | -37.9% |
| 2013/12 | 22,572 | -31.0% |
| 2012/12 | 32,717 | -8.3% |
| 2011/12 | 35,666 | - |