condition mean min max ZT0-3 66.3719 58.629599999999996 74.1142 ZT4-7 123.7255 123.7255 123.7255 ZT8-11 159.11450000000002 159.11450000000002 159.11450000000002 ZT12-15 0 0 0 ZT16-19 123.7925 123.7925 123.7925 ZT20-23 91.54945 91.54945 91.54945