| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2025/4 | 55,912 | -29.0% |
| 2024/4 | 78,781 | -16.0% |
| 2023/4 | 93,744 | -3.0% |
| 2022/4 | 96,606 | -3.7% |
| 2021/4 | 100,289 | +1.8% |
| 2020/4 | 98,513 | +4.3% |
| 2019/4 | 94,446 | +109.9% |
| 2018/4 | 45,004 | +140.9% |
| 2017/4 | 18,682 | +13.5% |
| 2016/4 | 16,456 | +13.3% |
| 2015/4 | 14,526 | -0.1% |
| 2014/4 | 14,545 | +0.8% |
| 2013/4 | 14,431 | -38.3% |
| 2012/4 | 23,387 | - |