| （単位：ドル） | 減価償却費 | 前年比（％） |
|---|---|---|
| 2024/12 | 500,000 | 0.0% |
| 2023/12 | 500,000 | 0.0% |
| 2022/12 | 500,000 | 0.0% |
| 2021/12 | 500,000 | -5.6% |
| 2020/12 | 529,814 | +0.5% |
| 2019/12 | 526,997 | +656.9% |
| 2018/12 | 69,630 | -47.3% |
| 2017/12 | 132,189 | -24.1% |
| 2016/12 | 174,275 | -29.5% |
| 2015/12 | 247,357 | -29.6% |
| 2014/12 | 351,561 | -24.1% |
| 2013/12 | 463,137 | +10.4% |
| 2012/12 | 419,358 | -26.2% |
| 2011/12 | 568,288 | - |