| （単位：千ドル） | 投資有価証券 | 前年比（％） |
|---|---|---|
| 2025/5 | 388,481 | +9.2% |
| 2024/5 | 355,812 | -11.0% |
| 2023/5 | 399,585 | -8.8% |
| 2022/5 | 437,919 | -18.6% |
| 2021/5 | 537,749 | +24.7% |
| 2020/5 | 431,101 | +6.5% |
| 2019/5 | 404,704 | -6.6% |
| 2018/5 | 433,333 | +99.5% |
| 2017/5 | 217,259 | +21.5% |
| 2016/5 | 178,863 | -45.1% |
| 2015/5 | 325,991 | +178.4% |
| 2014/5 | 117,113 | +1316.6% |
| 2013/5 | 8,267 | - |
| 2011/5 | 2 | - |