| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2025/12 | 28,859 | +5.2% |
| 2024/12 | 27,421 | -1.1% |
| 2023/12 | 27,733 | +4.4% |
| 2022/12 | 26,557 | -3.4% |
| 2021/12 | 27,478 | +7.4% |
| 2020/12 | 25,581 | -0.3% |
| 2019/12 | 25,670 | +3.7% |
| 2018/12 | 24,763 | -1.3% |
| 2017/12 | 25,091 | +9.1% |
| 2016/12 | 23,008 | +3.6% |
| 2015/12 | 22,198 | +5.8% |
| 2014/12 | 20,975 | +11.3% |
| 2013/12 | 18,843 | -6.8% |
| 2012/12 | 20,216 | - |