| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2024/12 | 18,058 | -21.2% |
| 2023/12 | 22,927 | -4.6% |
| 2022/12 | 24,033 | -10.1% |
| 2021/12 | 26,747 | -10.0% |
| 2020/12 | 29,735 | -6.9% |
| 2019/12 | 31,926 | -5.0% |
| 2018/12 | 33,602 | +7.3% |
| 2017/12 | 31,312 | +16.1% |
| 2016/12 | 26,967 | +31.9% |
| 2015/12 | 20,452 | +12.1% |
| 2014/12 | 18,244 | -0.6% |
| 2013/12 | 18,363 | +4.3% |
| 2012/12 | 17,613 | +1.6% |
| 2011/12 | 17,335 | - |