| （単位：百万） | 投資有価証券 | 前年比（％） |
|---|---|---|
| 2024/12 | 41,721 | -13.0% |
| 2023/12 | 47,957 | -13.3% |
| 2022/12 | 55,297 | -17.9% |
| 2021/12 | 67,332 | -11.7% |
| 2020/12 | 76,233 | +9.8% |
| 2019/12 | 69,410 | -13.7% |
| 2018/12 | 80,454 | +42.9% |
| 2017/12 | 56,283 | +23.2% |
| 2016/12 | 45,690 | +20.4% |
| 2015/12 | 37,959 | +1218.5% |
| 2014/12 | 2,879 | +353.5% |
| 2013/12 | 634 | -21.0% |
| 2012/12 | 803 | +9.4% |
| 2011/12 | 734 | +155.0% |
| 2010/12 | 287 | - |