condition mean min max ZT0-3 0.03423916666666667 0.0 0.1027175 ZT4-7 0.0520915 0.0520915 0.0520915 ZT8-11 0.052745 0.052745 0.052745 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0