condition mean min max ZT0-3 3720.15 3720.15 3720.15 ZT4-7 3537.1 3537.1 3537.1 ZT8-11 3176.85 3176.85 3176.85 ZT12-15 1965.9499999999998 1965.9499999999998 1965.9499999999998 ZT16-19 1074.95 1074.95 1074.95 ZT20-23 1779.8000000000002 1779.8000000000002 1779.8000000000002