condition mean min max ZT0-3 66.22205 59.55765 72.88645 ZT4-7 15.239799999999999 15.239799999999999 15.239799999999999 ZT8-11 5.34792 5.34792 5.34792 ZT12-15 0 0 0 ZT16-19 17.923000000000002 17.923000000000002 17.923000000000002 ZT20-23 32.381249999999994 32.381249999999994 32.381249999999994