| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2025/12 | 16,459 | -10.1% |
| 2024/12 | 18,300 | -4.0% |
| 2023/12 | 19,070 | -5.1% |
| 2022/12 | 20,095 | +12.2% |
| 2021/12 | 17,910 | +26.1% |
| 2020/12 | 14,201 | +29.1% |
| 2019/12 | 10,998 | +48.9% |
| 2018/12 | 7,385 | +4.2% |
| 2017/12 | 7,085 | +43.3% |
| 2016/12 | 4,944 | +64.4% |
| 2015/12 | 3,008 | -7.3% |
| 2014/12 | 3,245 | -7.3% |
| 2013/12 | 3,501 | -14.7% |
| 2012/12 | 4,105 | -18.3% |
| 2011/12 | 5,023 | - |