condition mean min max ZT0-3 90.232125 90.232125 90.232125 ZT4-7 99.47397699999999 99.47397699999999 99.47397699999999 ZT8-11 112.4892305 112.4892305 112.4892305 ZT12-15 92.43549250000001 92.43549250000001 92.43549250000001 ZT16-19 109.248328 109.248328 109.248328 ZT20-23 96.8052945 96.8052945 96.8052945