| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2024/12 | 542,000 | -2.3% |
| 2023/12 | 555,000 | -2.5% |
| 2022/12 | 569,000 | -0.9% |
| 2021/12 | 574,000 | +2.7% |
| 2020/12 | 559,000 | +6.3% |
| 2019/12 | 526,000 | +5.6% |
| 2018/12 | 498,000 | +12.4% |
| 2017/12 | 443,000 | +16.9% |
| 2016/12 | 379,000 | +14.8% |
| 2015/12 | 330,000 | +58.6% |
| 2014/12 | 208,067 | +15.6% |
| 2013/12 | 179,930 | +14.9% |
| 2012/12 | 156,588 | +26.1% |
| 2011/12 | 124,175 | +12.7% |
| 2010/12 | 110,172 | - |