| （単位：千ドル） | 有価証券 | 前年比（％） |
|---|---|---|
| 2023/12 | 0 | -100.0% |
| 2022/12 | 300 | -25.0% |
| 2021/12 | 400 | -87.1% |
| 2020/12 | 3,100 | -90.7% |
| 2019/12 | 33,200 | +937.5% |
| 2018/12 | 3,200 | -80.1% |
| 2017/12 | 16,100 | -62.7% |
| 2016/12 | 43,188 | +25.6% |
| 2015/12 | 34,396 | -26.7% |
| 2014/12 | 46,919 | -55.6% |
| 2013/12 | 105,760 | -34.1% |
| 2012/12 | 160,481 | +0.7% |
| 2011/12 | 159,347 | +1.2% |
| 2010/12 | 157,479 | - |