| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2025/12 | 50,800 | -10.9% |
| 2024/12 | 57,000 | +5.9% |
| 2023/12 | 53,800 | -3.1% |
| 2022/12 | 55,500 | +25.0% |
| 2021/12 | 44,400 | -1.6% |
| 2020/12 | 45,100 | +16.5% |
| 2019/12 | 38,700 | +40.2% |
| 2018/12 | 27,600 | +49.7% |
| 2017/12 | 18,432 | -5.4% |
| 2016/12 | 19,480 | +6.4% |
| 2015/12 | 18,313 | +8.7% |
| 2014/12 | 16,855 | +3.8% |
| 2013/12 | 16,245 | -5.1% |
| 2012/12 | 17,112 | - |