condition mean min max ZT0-3 74.95 74.95 74.95 ZT4-7 42.0 42.0 42.0 ZT8-11 78.4 78.4 78.4 ZT12-15 64.0 64.0 64.0 ZT16-19 70.65 70.65 70.65 ZT20-23 52.099999999999994 52.099999999999994 52.099999999999994