How much is the retired bus driver salary in Kunming?

The retirement salary of Kunming bus drivers is 100 to 4,000 yuan. According to relevant information inquiries, pensions are the life security of retirees, and workers’ pensions are paid according to their length of service. 100 yuan for each year of work, and so on, the pension for 10 years of service is 1,000 yuan. The pension for 20 years of service is 2,000 yuan, the pension for 30 years of service is 3,000 yuan, and the pension for 40 years of service is 4,000 yuan.