condition mean min max ZT0-3 0.5152695 0.5152695 0.5152695 ZT4-7 0.22948849999999998 0.22948849999999998 0.22948849999999998 ZT8-11 0.18264295000000003 0.18264295000000003 0.18264295000000003 ZT12-15 0.6924085 0.6924085 0.6924085 ZT16-19 1.489195 1.489195 1.489195 ZT20-23 0.7306615000000001 0.7306615000000001 0.7306615000000001