| （単位：百万ドル） | 投資有価証券 | 前年比（％） |
|---|---|---|
| 2024/12 | 886 | +10.9% |
| 2023/12 | 799 | +4.3% |
| 2022/12 | 766 | -6.1% |
| 2021/12 | 816 | -0.6% |
| 2020/12 | 821 | -7.0% |
| 2019/12 | 883 | -1.6% |
| 2018/12 | 897 | +1.6% |
| 2017/12 | 883 | -70.0% |
| 2016/12 | 2,947 | -27.1% |
| 2015/12 | 4,041 | +1664.6% |
| 2014/12 | 229 | +92.4% |
| 2013/12 | 119 | -56.5% |
| 2012/12 | 273 | -27.7% |
| 2011/12 | 378 | +25.2% |
| 2010/12 | 302 | - |