| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2024/12 | 367,000 | -12.4% |
| 2023/12 | 419,000 | -10.3% |
| 2022/12 | 478,000 | -0.2% |
| 2022/1 | 467,000 | -2.5% |
| 2021/1 | 479,000 | - |
| 2019/12 | 484,000 | -6.2% |
| 2018/12 | 516,000 | +7.3% |
| 2017/12 | 481,000 | -9.9% |
| 2016/12 | 517,000 | +2.8% |
| 2016/1 | 534,000 | +6.2% |
| 2015/1 | 503,000 | - |
| 2013/12 | 532,000 | +18.8% |
| 2012/12 | 448,000 | +14.3% |
| 2011/12 | 369,000 | - |
| 2011/1 | 392,000 | - |