condition mean min max ZT0-3 363.707241125 343.00595360000005 384.40852865 ZT4-7 172.54725002499998 143.37296305 201.72153699999998 ZT8-11 155.410817 128.2070382 182.61459580000002 ZT12-15 113.2900500975 90.56959859 136.010501605 ZT16-19 115.24715337500001 110.33794940000001 120.15635735000001 ZT20-23 137.03531594999998 130.04941294999998 144.02121895