condition mean min max ZT0-3 78.77255 78.77255 78.77255 ZT4-7 53.283950000000004 53.283950000000004 53.283950000000004 ZT8-11 30.326900000000002 30.326900000000002 30.326900000000002 ZT12-15 38.98835 38.98835 38.98835 ZT16-19 69.2033 69.2033 69.2033 ZT20-23 92.51875000000001 92.51875000000001 92.51875000000001