condition mean min max ZT0-3 80.4888 80.4888 80.4888 ZT4-7 82.8367 82.8367 82.8367 ZT8-11 69.04198666666667 69.04198666666667 69.04198666666667 ZT12-15 72.90304 72.90304 72.90304 ZT16-19 82.57179 82.57179 82.57179 ZT20-23 136.3434 136.3434 136.3434