Forty percent. Guiyang Experimental Primary School was founded on 1925 and moved to its present address on 1953. The school is now a seven-address school-running model. It is a leading school in Yunyan District, leading the development of education and teaching in 9 schools. The school covers a total area of 76,876 square meters. At present, there are 130 classes, more than 6,000 students and 26,500 teachers.