condition mean min max ZT0-3 0.10288370275 0.059991387 0.1457760185 ZT4-7 0.1412124395 0.12327123099999998 0.159153648 ZT8-11 0.09029582675 0.08071971850000001 0.099871935 ZT12-15 0.21614492700000001 0.14693275900000002 0.285357095 ZT16-19 0.40456454975 0.36802819100000006 0.4411009085 ZT20-23 0.6981267529999999 0.618338071 0.7779154349999999