| （単位：千ドル） | 投資有価証券 | 前年比（％） |
|---|---|---|
| 2024/12 | 3,776 | -7.0% |
| 2023/12 | 4,062 | -21.6% |
| 2022/12 | 5,180 | -18.5% |
| 2021/12 | 6,355 | +230.8% |
| 2020/12 | 1,921 | -37.7% |
| 2019/12 | 3,081 | +305.4% |
| 2018/12 | 760 | -26.6% |
| 2017/12 | 1,035 | -18.6% |
| 2016/12 | 1,272 | +25.3% |
| 2015/12 | 1,015 | -36.8% |
| 2014/12 | 1,605 | -2.7% |
| 2013/12 | 1,650 | +5.8% |
| 2012/12 | 1,559 | +21.0% |
| 2011/12 | 1,288 | - |