| （単位：千ドル） | 有価証券 | 前年比（％） |
|---|---|---|
| 2023/12 | 45,000 | -79.8% |
| 2022/12 | 223,000 | +537.1% |
| 2021/12 | 35,000 | +12.9% |
| 2020/12 | 31,000 | -50.8% |
| 2019/12 | 63,000 | +18.9% |
| 2018/12 | 53,000 | +488.9% |
| 2017/12 | 9,000 | -30.8% |
| 2016/12 | 13,000 | -95.8% |
| 2015/12 | 310,000 | -26.5% |
| 2014/12 | 422,000 | +60.5% |
| 2013/12 | 263,000 | -1.1% |
| 2012/12 | 266,000 | +6.8% |
| 2011/12 | 249,000 | +60.6% |
| 2010/12 | 155,000 | - |