condition mean min max ZT0-3 84.3162 84.3162 84.3162 ZT4-7 69.23495 69.23495 69.23495 ZT8-11 66.9773 66.9773 66.9773 ZT12-15 77.134 77.134 77.134 ZT16-19 98.77255 98.77255 98.77255 ZT20-23 79.7184 79.7184 79.7184