| （単位：千円） | 投資有価証券 | 前年比（％） |
|---|---|---|
| 2026/6 | 374,525 | +1.0% |
| 2025/6 | 370,854 | -0.3% |
| 2024/6 | 371,784 | +15.0% |
| 2023/6 | 323,375 | +52.0% |
| 2022/6 | 212,756 | -34.1% |
| 2021/6 | 322,676 | -17.2% |
| 2020/12 | 389,925 | +54.7% |
| 2019/12 | 252,105 | -5.0% |
| 2018/12 | 265,398 | +70.6% |
| 2017/12 | 155,568 | +62.4% |
| 2016/12 | 95,781 | -15.9% |
| 2015/12 | 113,918 | +22.8% |
| 2014/12 | 92,774 | - |