What is the social security base of Shanghai over the years?

Shanghai's social security base over the years: for example, 20 15: the upper limit 16353 yuan, and the lower limit1yuan; 20 16: the upper limit 178 17 yuan, and the lower limit is 3,563 yuan; 20 17: the upper limit 195 12 yuan, and the lower limit is 3902 yuan. 202 1 July1is adjusted to 5,975 yuan/month, with the upper limit of 3 10 14 yuan/month and the lower limit of 5,975 yuan/month.

Legal basis: Article 58 of the Social Insurance Law, the employer shall apply to the social insurance agency for social insurance registration for its employees within 30 days from the date of employment. If the social insurance has not been registered, the social insurance agency shall verify the social insurance premium it should pay.

Employees-free individual industrial and commercial households who voluntarily participate in social insurance, part-time employees who do not participate in social insurance in the employing unit and other flexible employees shall apply to the social insurance agency for social insurance registration. The state establishes a national unified personal social security number.

Personal social security number is a citizen's identity number.