condition mean min max ZT0-3 59.7187 59.7187 59.7187 ZT4-7 35.5572 35.5572 35.5572 ZT8-11 43.8313 43.8313 43.8313 ZT12-15 80.24510000000001 80.24510000000001 80.24510000000001 ZT16-19 101.4863 101.4863 101.4863 ZT20-23 105.9265 105.9265 105.9265