| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2024/12 | 336,000 | -5.6% |
| 2023/12 | 356,000 | -19.1% |
| 2022/12 | 440,000 | +0.5% |
| 2021/12 | 438,000 | +7.1% |
| 2020/12 | 409,000 | +3.8% |
| 2019/12 | 394,000 | +9.4% |
| 2018/12 | 360,000 | +5.0% |
| 2017/12 | 343,000 | +16.3% |
| 2016/12 | 295,000 | +96.7% |
| 2015/12 | 150,000 | -13.3% |
| 2014/12 | 173,000 | -24.1% |
| 2013/12 | 228,000 | +9.6% |
| 2012/12 | 208,000 | -43.2% |
| 2011/12 | 366,000 | -36.0% |
| 2010/12 | 572,000 | - |