| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2024/12 | 382,000 | -3.3% |
| 2023/12 | 395,000 | +1.3% |
| 2022/12 | 397,000 | +1.5% |
| 2022/1 | 390,000 | -0.3% |
| 2021/1 | 391,000 | -6.0% |
| 2020/1 | 416,000 | - |
| 2018/12 | 437,000 | -2.2% |
| 2017/12 | 447,000 | -3.0% |
| 2016/12 | 449,000 | -2.2% |
| 2016/1 | 461,000 | +0.4% |
| 2015/1 | 459,000 | - |
| 2013/12 | 389,000 | +1.6% |
| 2012/12 | 383,000 | -2.5% |
| 2011/12 | 403,000 | - |
| 2011/1 | 393,000 | - |