condition mean min max ZT0-3 305.65 305.65 305.65 ZT4-7 378.3 378.3 378.3 ZT8-11 208.25 208.25 208.25 ZT12-15 227.45 227.45 227.45 ZT16-19 222.4 222.4 222.4 ZT20-23 228.85 228.85 228.85