| （単位：千ドル） | 投資有価証券 | 前年比（％） |
|---|---|---|
| 2025/9 | 68,198 | -32.2% |
| 2024/9 | 100,567 | -62.0% |
| 2023/9 | 264,947 | +21.0% |
| 2022/9 | 218,981 | +61.7% |
| 2021/9 | 135,444 | +328.8% |
| 2020/9 | 31,585 | -1.3% |
| 2019/9 | 31,991 | -67.6% |
| 2018/9 | 98,696 | +17.5% |
| 2017/9 | 84,026 | -1.1% |
| 2016/9 | 84,955 | -18.6% |
| 2015/9 | 104,354 | -55.9% |
| 2014/9 | 236,644 | -25.1% |
| 2013/9 | 316,154 | -29.9% |
| 2012/9 | 451,144 | +29.7% |
| 2011/9 | 347,924 | +8.5% |
| 2010/9 | 320,712 | - |