| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2024/12 | 343,000 | +6.7% |
| 2023/12 | 321,400 | +1.2% |
| 2022/12 | 317,600 | +2.9% |
| 2021/12 | 308,700 | -10.8% |
| 2020/12 | 346,000 | -42.4% |
| 2019/12 | 601,000 | - |
| 2016/12 | 465,400 | -18.7% |
| 2015/12 | 572,200 | -12.7% |
| 2014/12 | 655,700 | -11.4% |
| 2013/12 | 740,300 | +11.6% |
| 2012/12 | 663,400 | +37.6% |
| 2011/12 | 482,200 | +9.4% |
| 2010/12 | 440,900 | - |