| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2024/12 | 10,404 | -11.6% |
| 2023/12 | 11,774 | -28.9% |
| 2022/12 | 16,565 | -0.3% |
| 2021/12 | 16,617 | -26.6% |
| 2020/12 | 22,647 | +9.8% |
| 2019/12 | 20,626 | -15.5% |
| 2018/12 | 24,402 | -6.4% |
| 2017/12 | 26,082 | +30.8% |
| 2016/12 | 19,939 | +21.6% |
| 2015/12 | 16,402 | +5.8% |
| 2014/12 | 15,502 | -13.9% |
| 2013/12 | 18,015 | +28.0% |
| 2012/12 | 14,074 | -1.3% |
| 2011/12 | 14,253 | -7.0% |
| 2010/12 | 15,327 | - |