condition mean min max ZT0-3 72.1545 72.1545 72.1545 ZT4-7 32.97735 32.97735 32.97735 ZT8-11 29.74405 29.74405 29.74405 ZT12-15 84.425 84.425 84.425 ZT16-19 163.76600000000002 163.76600000000002 163.76600000000002 ZT20-23 98.32945000000001 98.32945000000001 98.32945000000001