condition mean min max ZT0-3 132.022491 132.022491 132.022491 ZT4-7 152.263208 152.263208 152.263208 ZT8-11 126.44435899999999 126.44435899999999 126.44435899999999 ZT12-15 73.003152 73.003152 73.003152 ZT16-19 166.175151 166.175151 166.175151 ZT20-23 234.6449035 234.6449035 234.6449035