Why do some social security units in Hangzhou pay 16%, 15% and 14%?

According to relevant information, the types of insurance are different. According to the "Measures for the Collection and Payment of Social Insurance Fees in Hangzhou" promulgated by Hangzhou, the proportion of social insurance paid by units in Hangzhou is divided into: endowment insurance, unit contribution14%; Medical insurance (including maternity insurance), paid by the unit10.50%; Unemployment insurance is 0.50%; Industrial injury insurance, the part paid by the unit fluctuates according to the industry risk level. Therefore, the unit proportions of 14%, 15% and 16% will appear.