| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2025/12 | 137,750 | -15.5% |
| 2024/12 | 162,994 | -10.0% |
| 2023/12 | 181,116 | -3.3% |
| 2022/12 | 187,382 | -4.0% |
| 2021/12 | 195,120 | +3.2% |
| 2020/12 | 189,058 | -0.4% |
| 2019/12 | 189,790 | +1.8% |
| 2018/12 | 186,384 | +21.3% |
| 2017/12 | 153,599 | -3.5% |
| 2016/12 | 159,195 | +2.2% |
| 2015/12 | 155,754 | -0.2% |
| 2014/12 | 156,048 | +19.0% |
| 2013/12 | 131,141 | +13.7% |
| 2012/12 | 115,350 | +11.5% |
| 2011/12 | 103,482 | +33.8% |
| 2010/12 | 77,352 | - |