condition mean min max ZT0-3 88.6467844675 81.52975748 95.763811455 ZT4-7 72.01705764500001 65.85962763 78.17448766000001 ZT8-11 101.5130195425 82.871919305 120.15411978 ZT12-15 91.1487810575 76.50313925 105.79442286499999 ZT16-19 90.2637626675 84.96596653 95.561558805 ZT20-23 80.44926386750001 73.68108132500001 87.21744641000001