| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2025/12 | 25,537 | -7.2% |
| 2024/12 | 27,530 | -12.2% |
| 2023/12 | 31,372 | -18.7% |
| 2022/12 | 38,610 | -8.6% |
| 2021/12 | 42,225 | -6.8% |
| 2020/12 | 45,314 | -3.9% |
| 2019/12 | 47,144 | +2.7% |
| 2018/12 | 45,899 | +15.4% |
| 2017/12 | 39,757 | +4.7% |
| 2016/12 | 37,955 | -13.6% |
| 2015/12 | 43,917 | +4.5% |
| 2014/12 | 42,030 | -4.9% |
| 2013/12 | 44,198 | +34.7% |
| 2012/12 | 32,821 | - |