| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2025/9 | 14,952 | +8.1% |
| 2024/9 | 13,827 | -5.5% |
| 2023/9 | 14,638 | -28.5% |
| 2022/9 | 20,465 | -20.0% |
| 2021/9 | 25,592 | -15.7% |
| 2020/9 | 30,367 | -3.9% |
| 2019/9 | 31,612 | +4.7% |
| 2018/9 | 30,182 | -16.7% |
| 2017/9 | 36,214 | +14.5% |
| 2016/9 | 31,633 | -6.7% |
| 2015/9 | 33,889 | +3.9% |
| 2014/9 | 32,632 | -1.8% |
| 2013/9 | 33,214 | +54.1% |
| 2012/9 | 21,549 | -10.9% |
| 2011/9 | 24,197 | -21.7% |
| 2010/9 | 30,918 | - |