| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2025/12 | 487,000 | -2.0% |
| 2024/12 | 497,000 | +1.2% |
| 2023/12 | 491,000 | +5.6% |
| 2022/12 | 465,000 | +3.8% |
| 2021/12 | 448,000 | +1.6% |
| 2020/12 | 441,000 | +7.0% |
| 2019/12 | 412,000 | +33.8% |
| 2018/12 | 308,000 | +27.3% |
| 2017/12 | 242,000 | +0.8% |
| 2016/12 | 240,000 | +20.6% |
| 2015/12 | 199,000 | -2.5% |
| 2014/12 | 204,000 | -2.4% |
| 2013/12 | 209,000 | - |