What year is the social pooling of endowment insurance?

1997, a mixed endowment insurance model characterized by the combination of social pooling and individual accounts was formally established. In this model, the social pooling part is 20% of the total wages of enterprise employees, which is formed by enterprise contributions, and the personal account part is 1 1% of individual contributions, of which the enterprise burden is 3% and the individual burden is 8%.