| Year | Average Proportion of Financial Investments in Total Assets (%) | Median Return Rate on Financial Investments (%) |
| 2018 | 9.0 | 4.5 |
| 2019 | 9.5 | 4.4 |
| 2020 | 10.0 | 4.3 |
| 2021 | 10.3 | 4.3 |