| （単位：ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2024/12 | 571,000 | +23.1% |
| 2023/12 | 464,000 | -28.2% |
| 2022/12 | 646,000 | -6.0% |
| 2021/12 | 687,000 | +17.2% |
| 2020/12 | 586,000 | +36.0% |
| 2019/12 | 431,000 | +13.4% |
| 2018/12 | 380,000 | +18.8% |
| 2017/12 | 320,000 | +18.5% |
| 2016/12 | 270,000 | +7.6% |
| 2015/12 | 251,000 | -27.9% |
| 2014/12 | 348,000 | +3.3% |
| 2013/12 | 337,000 | -5.9% |
| 2012/12 | 358,000 | - |