condition mean min max ZT0-3 92.60000000000001 92.60000000000001 92.60000000000001 ZT4-7 76.7 76.7 76.7 ZT8-11 111.8 111.8 111.8 ZT12-15 125.75 125.75 125.75 ZT16-19 60.099999999999994 60.099999999999994 60.099999999999994 ZT20-23 98.8 98.8 98.8