Is it normal to pay 20,000+ for 4 years in social security?

Normal. Social security premiums are paid by the social security administration based on the average social wage in the region to determine the standard base, delineating different payment grades, social security paid more than 20,000 for four years, indicating that the payment of social security base is higher, is normal. Social insurance is a social and economic system to provide income or compensation for the loss of labor capacity, temporary loss of labor positions or loss of population due to health reasons.