| （単位：千ドル） | 有価証券 | 前年比（％） |
|---|---|---|
| 2023/12 | 52,975 | -15.9% |
| 2022/12 | 63,014 | -16.5% |
| 2021/12 | 75,436 | -62.7% |
| 2020/12 | 202,274 | +279.4% |
| 2019/12 | 53,318 | -42.2% |
| 2018/12 | 92,171 | +629.1% |
| 2017/12 | 12,642 | -36.2% |
| 2016/12 | 19,801 | +83.1% |
| 2015/12 | 10,814 | -65.4% |
| 2014/12 | 31,265 | +176.2% |
| 2013/12 | 11,319 | +166.5% |
| 2012/12 | 4,247 | -4.0% |
| 2011/12 | 4,424 | - |