How much can outsiders get back after paying social security for seven years?

Foreigners who have paid social security for seven years can probably get 1/3 back. Eligible surrender can only be refunded to about 1/3 of the paid money. The social security paid by individuals is more than 8 thousand a year, and only more than 2 thousand can be refunded a year, which is the personal part. How much social security does an individual pay a year? You only need to pay two kinds of insurance, pension and medical insurance.