| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2024/12 | 13,298 | -1.0% |
| 2023/12 | 13,438 | -4.2% |
| 2022/12 | 14,030 | -3.9% |
| 2021/12 | 14,601 | +25.2% |
| 2020/12 | 11,663 | +1.5% |
| 2019/12 | 11,487 | -10.7% |
| 2018/12 | 12,857 | +16.5% |
| 2017/12 | 11,037 | -12.2% |
| 2016/12 | 12,564 | -1.2% |
| 2015/12 | 12,719 | +27.4% |
| 2014/12 | 9,987 | +66.6% |
| 2013/12 | 5,994 | +30.0% |
| 2012/12 | 4,609 | +5.4% |
| 2011/12 | 4,374 | - |