| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2025/6 | 43,580 | +3.2% |
| 2024/6 | 42,209 | +9.6% |
| 2023/6 | 38,513 | -0.4% |
| 2022/6 | 38,679 | -11.8% |
| 2021/6 | 43,855 | -11.9% |
| 2020/6 | 49,758 | -11.5% |
| 2019/6 | 56,234 | -19.4% |
| 2018/6 | 69,754 | +2.2% |
| 2017/6 | 68,235 | +17.8% |
| 2016/6 | 57,922 | -1.8% |
| 2015/6 | 58,976 | +8.7% |
| 2014/6 | 54,239 | +97.2% |
| 2013/6 | 27,507 | +36.2% |
| 2012/6 | 20,199 | - |