In which year was Yibin Social Security Five Insurance compulsory?

20 1 1 July 1. According to the query of Yibin Social Insurance Bureau, the social security "five insurances" refers to five insurances, and the compulsory payment started on July 20th11in Yibin. Social security "five insurances" refers to five kinds of insurance, including endowment insurance, medical insurance, unemployment insurance, industrial injury insurance and maternity insurance. Among them, old-age insurance, medical insurance and unemployment insurance are premiums paid jointly by enterprises and individuals, while industrial injury insurance and maternity insurance are entirely borne by enterprises. Individuals do not need to pay fees. It should be noted that the "five risks" are legal.