| （単位：千ドル） | 有価証券 | 前年比（％） |
|---|---|---|
| 2024/12 | 7,647 | -39.7% |
| 2023/12 | 12,691 | +883.8% |
| 2022/12 | 1,290 | +7488.2% |
| 2021/12 | 17 | -99.8% |
| 2020/12 | 9,500 | -42.4% |
| 2019/12 | 16,500 | -51.5% |
| 2018/12 | 34,036 | +20.0% |
| 2017/12 | 28,369 | -8.8% |
| 2016/12 | 31,109 | +55.1% |
| 2015/12 | 20,059 | -42.7% |
| 2014/12 | 35,020 | -70.1% |
| 2013/12 | 117,218 | -53.7% |
| 2012/12 | 253,282 | +79.7% |
| 2011/12 | 140,914 | - |