condition mean min max ZT0-3 2.3654775 1.7528700000000002 2.9780849999999996 ZT4-7 54.123099999999994 54.123099999999994 54.123099999999994 ZT8-11 38.32455 38.32455 38.32455 ZT12-15 0 0 0 ZT16-19 5.860825 5.860825 5.860825 ZT20-23 9.818075 9.818075 9.818075