condition mean min max ZT0-3 63.560886795 25.70319229 101.4185813 ZT4-7 23.185800812500002 18.609488990000003 27.762112635 ZT8-11 35.022766732499996 27.791275749999997 42.254257714999994 ZT12-15 41.798961025 38.76497492 44.83294713 ZT16-19 38.85542907 37.806503535000004 39.904354604999995 ZT20-23 55.10829386 48.03999618 62.176591540000004