condition mean min max ZT0-3 91.05 91.05 91.05 ZT4-7 151.8 151.8 151.8 ZT8-11 129.9 129.9 129.9 ZT12-15 169.60000000000002 169.60000000000002 169.60000000000002 ZT16-19 109.9 109.9 109.9 ZT20-23 86.95 86.95 86.95