| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2024/12 | 18,375 | +8.6% |
| 2023/12 | 16,916 | -2.8% |
| 2022/12 | 17,396 | -10.6% |
| 2021/12 | 19,463 | -11.5% |
| 2020/12 | 21,992 | +5.6% |
| 2019/12 | 20,818 | +3.2% |
| 2018/12 | 20,168 | -11.0% |
| 2017/12 | 22,667 | +1.8% |
| 2016/12 | 22,269 | +3.4% |
| 2015/12 | 21,534 | +22.3% |
| 2014/12 | 17,614 | +31.5% |
| 2013/12 | 13,391 | +65.3% |
| 2012/12 | 8,100 | +21.4% |
| 2011/12 | 6,672 | -8.1% |
| 2010/12 | 7,263 | - |