| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2025/12 | 31,008 | -6.1% |
| 2024/12 | 33,010 | -3.2% |
| 2023/12 | 34,099 | +2.4% |
| 2022/12 | 33,294 | -4.7% |
| 2021/12 | 34,921 | -2.2% |
| 2020/12 | 35,705 | -7.3% |
| 2019/12 | 38,533 | +12.0% |
| 2018/12 | 34,413 | +9.7% |
| 2017/12 | 31,383 | -3.4% |
| 2016/5 | 32,474 | -2.4% |
| 2015/5 | 33,286 | +17.1% |
| 2014/5 | 28,429 | +6.7% |
| 2013/5 | 26,647 | +21.0% |
| 2012/5 | 22,024 | - |