| （単位：千ドル） | 有価証券 | 前年比（％） |
|---|---|---|
| 2022/12 | 1,000 | -98.7% |
| 2021/12 | 76,000 | -66.6% |
| 2020/12 | 227,700 | +108.1% |
| 2019/12 | 109,400 | +48.2% |
| 2018/12 | 73,826 | -64.7% |
| 2017/12 | 209,434 | +10.5% |
| 2016/12 | 189,463 | -56.0% |
| 2015/12 | 430,663 | +50.2% |
| 2014/12 | 286,795 | -4.6% |
| 2013/12 | 300,715 | -8.2% |
| 2012/12 | 327,653 | +29.7% |
| 2011/12 | 252,603 | -6.3% |
| 2010/12 | 269,457 | - |