| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2025/12 | 28,760 | -11.3% |
| 2024/12 | 32,434 | -22.3% |
| 2023/12 | 41,737 | -17.3% |
| 2022/12 | 50,494 | +0.8% |
| 2021/12 | 50,079 | +17.1% |
| 2020/12 | 42,780 | +4.3% |
| 2019/12 | 41,029 | -0.5% |
| 2018/12 | 41,228 | +3.1% |
| 2017/12 | 39,977 | +14.7% |
| 2016/12 | 34,868 | +2.7% |
| 2015/12 | 33,945 | +21.5% |
| 2014/12 | 27,949 | +106.3% |
| 2013/12 | 13,547 | +132.0% |
| 2012/12 | 5,840 | - |