| （単位：百万円） | 投資有価証券 | 前年比（％） |
|---|---|---|
| 2026/3 | 12,520 | -51.8% |
| 2025/3 | 25,958 | -11.0% |
| 2024/3 | 29,167 | +2.7% |
| 2023/3 | 28,405 | -1.6% |
| 2022/3 | 28,877 | +19.1% |
| 2021/3 | 24,253 | +11.6% |
| 2020/3 | 21,729 | +6.2% |
| 2019/3 | 20,462 | -6.3% |
| 2018/3 | 21,832 | +4.2% |
| 2017/3 | 20,958 | +3.9% |
| 2016/3 | 20,164 | -3.1% |
| 2015/3 | 20,819 | +12.1% |
| 2014/3 | 18,568 | +14.5% |
| 2013/3 | 16,212 | - |