condition mean min max ZT0-3 29.536675000000002 23.652700000000003 35.42065 ZT4-7 64.14375000000001 64.14375000000001 64.14375000000001 ZT8-11 60.58955 60.58955 60.58955 ZT12-15 0 0 0 ZT16-19 68.0952 68.0952 68.0952 ZT20-23 63.6887 63.6887 63.6887