| （単位：千ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2025/12 | 21,838 | -10.7% |
| 2024/12 | 24,466 | -6.3% |
| 2023/12 | 26,104 | -6.0% |
| 2022/12 | 27,777 | -4.2% |
| 2021/12 | 29,005 | -8.9% |
| 2020/12 | 31,854 | -3.6% |
| 2019/12 | 33,049 | -5.7% |
| 2018/12 | 35,032 | +29.4% |
| 2017/12 | 27,063 | +4.9% |
| 2016/12 | 25,790 | +1.9% |
| 2015/12 | 25,309 | -7.1% |
| 2014/12 | 27,254 | +146.4% |
| 2013/12 | 11,059 | +60.2% |
| 2012/12 | 6,905 | +39.7% |
| 2011/12 | 4,943 | - |