condition mean min max ZT0-3 43.6627 41.1061 47.70955 ZT4-7 44.082 44.082 44.082 ZT8-11 46.05945 46.05945 46.05945 ZT12-15 62.26285 59.079449999999994 65.44625 ZT16-19 48.63545 48.63545 48.63545 ZT20-23 59.670249999999996 59.670249999999996 59.670249999999996