| （単位：百万） | 投資有価証券 | 前年比（％） |
|---|---|---|
| 2024/12 | 47,194 | -4.4% |
| 2023/12 | 49,342 | -1.7% |
| 2022/12 | 50,177 | +11.6% |
| 2021/12 | 44,961 | -6.2% |
| 2020/12 | 47,943 | -6.5% |
| 2019/12 | 51,278 | +90.8% |
| 2018/12 | 26,874 | +5.1% |
| 2017/12 | 25,574 | +24.6% |
| 2016/12 | 20,533 | +48.0% |
| 2015/12 | 13,871 | +160.8% |
| 2014/12 | 5,319 | +86.2% |
| 2013/12 | 2,857 | +98.8% |
| 2012/12 | 1,437 | +10.1% |
| 2011/12 | 1,305 | -17.1% |
| 2010/12 | 1,574 | - |