| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2024/12 | 25,300 | +1.5% |
| 2023/12 | 24,938 | -8.8% |
| 2022/12 | 27,359 | +5.3% |
| 2021/12 | 25,978 | -14.0% |
| 2020/12 | 30,222 | -12.2% |
| 2019/12 | 34,405 | -12.5% |
| 2018/12 | 39,311 | -21.5% |
| 2017/12 | 50,089 | +7.0% |
| 2016/12 | 46,816 | -19.4% |
| 2015/12 | 58,053 | +87.3% |
| 2014/12 | 30,989 | +31.3% |
| 2013/12 | 23,609 | -6.5% |
| 2012/12 | 25,251 | +2.2% |
| 2011/12 | 24,717 | +8.1% |
| 2010/12 | 22,861 | - |