| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2024/9 | 32,482 | -2.8% |
| 2023/9 | 33,434 | -0.4% |
| 2022/9 | 33,553 | -2.6% |
| 2021/9 | 34,457 | -3.3% |
| 2020/9 | 35,622 | +5.0% |
| 2019/9 | 33,933 | +3.3% |
| 2018/9 | 32,863 | +12.7% |
| 2017/9 | 29,163 | +5.0% |
| 2016/9 | 27,777 | +3.8% |
| 2015/9 | 26,748 | +15.1% |
| 2014/9 | 23,237 | +22.0% |
| 2013/9 | 19,047 | +5.6% |
| 2012/9 | 18,029 | -11.3% |
| 2011/9 | 20,324 | - |