Is this the right way to understand social security?

Social security is the term used to refer to a social insurance or protection mechanism that helps citizens face certain social risks such as unemployment, illness, accidents, aging, death, etc., or protects basic survival resources such as education and medical care.

For workers, social security is often referred to as "five insurance", specifically five insurance: pension insurance, medical insurance, unemployment insurance, work injury insurance and maternity insurance; social insurance does not include housing fund.

"Five insurance": according to the employee's salary, the unit and the individual's share of the general is: pension insurance unit to bear 20%, the individual to bear 8%; medical insurance unit to bear 8%, the individual 2%; unemployment insurance unit to bear 2%, the individual 1%; maternity insurance 0.7% of all by the unit to bear; industrial injury insurance 0.5 Maternity insurance 0.7% is borne by the unit; work injury insurance 0.5% ~ 1.6% is also borne by the unit, and the individual employee is not responsible for maternity and work injury insurance. The proportion of each province and city varies.