| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2024/12 | 21,681 | -2.3% |
| 2023/12 | 22,189 | +0.6% |
| 2022/12 | 22,048 | +10.0% |
| 2021/12 | 20,041 | +8.8% |
| 2020/12 | 18,424 | +15.2% |
| 2019/12 | 15,989 | +18.0% |
| 2018/12 | 13,546 | +14.9% |
| 2017/12 | 11,791 | -4.8% |
| 2016/12 | 12,383 | +4.1% |
| 2015/12 | 11,901 | +4.9% |
| 2014/12 | 11,349 | +2.5% |
| 2013/12 | 11,077 | +2.2% |
| 2012/12 | 10,840 | +12.0% |
| 2011/12 | 9,682 | - |