| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2024/12 | 15,535 | -16.0% |
| 2023/12 | 18,489 | -17.9% |
| 2022/12 | 22,519 | +18.1% |
| 2021/12 | 19,075 | +107.4% |
| 2020/12 | 9,198 | -38.4% |
| 2019/12 | 14,932 | -31.2% |
| 2018/12 | 21,689 | -38.0% |
| 2017/12 | 34,985 | -18.8% |
| 2016/12 | 43,087 | -57.3% |
| 2015/12 | 100,828 | +26.2% |
| 2014/12 | 79,876 | +24.1% |
| 2013/12 | 64,377 | +10.6% |
| 2012/12 | 58,221 | -10.6% |
| 2011/12 | 65,118 | +14.3% |
| 2010/12 | 56,978 | - |