condition mean min max ZT0-3 796.25 796.25 796.25 ZT4-7 1069.1 1069.1 1069.1 ZT8-11 1138.25 1138.25 1138.25 ZT12-15 1067.6 1067.6 1067.6 ZT16-19 894.9499999999999 894.9499999999999 894.9499999999999 ZT20-23 748.45 748.45 748.45