condition mean min max ZT0-3 24344.69006 24344.69006 24344.69006 ZT4-7 22973.59544 22973.59544 22973.59544 ZT8-11 25070.074464999998 25070.074464999998 25070.074464999998 ZT12-15 23542.605649999998 23542.605649999998 23542.605649999998 ZT16-19 26214.314875 26214.314875 26214.314875 ZT20-23 26399.775565 26399.775565 26399.775565