| （単位：千ドル） | 有価証券 | 前年比（％） |
|---|---|---|
| 2024/12 | 16,000 | 0.0% |
| 2023/12 | 16,000 | -51.6% |
| 2022/12 | 33,068 | +4.0% |
| 2021/12 | 31,791 | -7.9% |
| 2020/12 | 34,529 | -0.6% |
| 2019/12 | 34,728 | -42.9% |
| 2018/12 | 60,781 | +3001.1% |
| 2017/12 | 1,960 | +5.9% |
| 2016/12 | 1,851 | -81.3% |
| 2015/12 | 9,875 | -65.5% |
| 2014/12 | 28,631 | -38.2% |
| 2013/12 | 46,340 | +174.1% |
| 2012/12 | 16,904 | -70.3% |
| 2011/12 | 56,987 | +31.4% |
| 2010/12 | 43,367 | - |