| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2025/6 | 582,400 | +3.6% |
| 2024/6 | 561,900 | +2.3% |
| 2023/6 | 549,300 | +6.6% |
| 2022/6 | 515,100 | +0.9% |
| 2021/6 | 510,700 | +6.4% |
| 2020/6 | 480,000 | +17.4% |
| 2019/6 | 409,000 | +8.3% |
| 2018/6 | 377,600 | +19.5% |
| 2017/6 | 316,100 | +9.5% |
| 2016/6 | 288,600 | +3.9% |
| 2015/6 | 277,900 | -17.3% |
| 2014/6 | 336,200 | +6.1% |
| 2013/6 | 317,000 | -1.9% |
| 2012/6 | 323,300 | +1.6% |
| 2011/6 | 318,200 | +2.9% |
| 2010/6 | 309,200 | - |