condition mean min max ZT0-3 1.0132482500000002 0.6552765 1.37122 ZT4-7 1.1137314999999999 1.1137314999999999 1.1137314999999999 ZT8-11 0.661152 0.661152 0.661152 ZT12-15 0 0 0 ZT16-19 1.048235 1.048235 1.048235 ZT20-23 0.5512615000000001 0.5512615000000001 0.5512615000000001