The highest rate of service utilization is 16.90% in Shenlong No.2 area, and only 0.24% in taotian Xiandou No.2 area. Anselon, Anderson and Sri Cante have zero service utilization in zone 2. As the first player in men's singles in the world, taotian Xiandou mainly serves in zone 1 and zone 5, with the utilization rate of 34.67% and 63.92% respectively.