| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2024/12 | 4,885 | +1.6% |
| 2023/12 | 4,806 | +3.8% |
| 2022/12 | 4,628 | +0.7% |
| 2021/12 | 4,594 | -7.0% |
| 2020/12 | 4,938 | -1.9% |
| 2019/12 | 5,036 | -7.2% |
| 2018/12 | 5,424 | +19.2% |
| 2017/12 | 4,551 | 0.0% |
| 2016/12 | 4,549 | -10.6% |
| 2015/12 | 5,090 | +4.5% |
| 2014/12 | 4,871 | +15.3% |
| 2013/12 | 4,226 | -14.7% |
| 2012/12 | 4,954 | +16.0% |
| 2011/12 | 4,270 | - |