| （単位：千ドル） | 投資有価証券 | 前年比（％） |
|---|---|---|
| 2025/3 | 18,067 | +4.3% |
| 2024/3 | 17,316 | -7.1% |
| 2023/4 | 18,639 | -46.6% |
| 2022/4 | 34,933 | -0.2% |
| 2021/4 | 35,010 | +10.9% |
| 2020/3 | 31,557 | -1.8% |
| 2019/3 | 32,137 | -4.3% |
| 2018/3 | 33,573 | +11.0% |
| 2017/4 | 30,256 | +4.5% |
| 2016/4 | 28,948 | +16.7% |
| 2015/3 | 24,813 | +44.6% |
| 2014/3 | 17,165 | +59.4% |
| 2013/3 | 10,769 | +22.0% |
| 2012/3 | 8,825 | - |