condition mean min max ZT0-3 70.32945000000001 64.85675 75.80215 ZT4-7 49.183800000000005 49.183800000000005 49.183800000000005 ZT8-11 44.6965 44.6965 44.6965 ZT12-15 0 0 0 ZT16-19 60.8546 60.8546 60.8546 ZT20-23 74.09325000000001 74.09325000000001 74.09325000000001