| （単位：千ドル） | 有価証券 | 前年比（％） |
|---|---|---|
| 2025/4 | 36,388 | -14.9% |
| 2024/4 | 42,742 | -4.7% |
| 2023/4 | 44,837 | -21.7% |
| 2022/4 | 57,244 | -10.1% |
| 2021/4 | 63,667 | +51.8% |
| 2020/4 | 41,951 | +406.2% |
| 2019/4 | 8,288 | -42.0% |
| 2018/4 | 14,293 | +227.6% |
| 2017/4 | 4,363 | -61.5% |
| 2016/4 | 11,338 | -56.0% |
| 2015/4 | 25,757 | +169.3% |
| 2014/4 | 9,566 | -53.0% |
| 2013/4 | 20,347 | -50.3% |
| 2012/4 | 40,936 | +96.2% |
| 2011/4 | 20,868 | - |