| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2025/12 | 30,400 | -7.6% |
| 2024/12 | 32,900 | -8.6% |
| 2023/12 | 36,000 | -14.7% |
| 2022/12 | 42,200 | +12.2% |
| 2021/12 | 37,600 | +537.3% |
| 2020/12 | 5,900 | -85.6% |
| 2019/12 | 41,100 | +6.2% |
| 2018/12 | 38,700 | +5.8% |
| 2017/12 | 36,569 | +26.7% |
| 2016/12 | 28,863 | -6.7% |
| 2015/12 | 30,939 | +245.0% |
| 2014/12 | 8,967 | -62.6% |
| 2013/12 | 23,964 | -44.6% |
| 2012/12 | 43,239 | - |