| （単位：百万円） | 投資有価証券 | 前年比（％） |
|---|---|---|
| 2026/3 | 21,269 | +51.3% |
| 2025/3 | 14,053 | +19.7% |
| 2024/3 | 11,744 | +15.9% |
| 2023/3 | 10,134 | +9.3% |
| 2022/3 | 9,272 | -20.6% |
| 2021/3 | 11,682 | +105.2% |
| 2020/3 | 5,693 | -8.9% |
| 2019/3 | 6,248 | +18.5% |
| 2018/3 | 5,272 | +22.0% |
| 2017/3 | 4,320 | +52.7% |
| 2016/3 | 2,830 | -23.1% |
| 2015/3 | 3,680 | -40.8% |
| 2014/3 | 6,215 | +19.9% |
| 2013/3 | 5,185 | - |