condition mean min max ZT0-3 0.42903 0.42903 0.42903 ZT4-7 0.2383285 0.2383285 0.2383285 ZT8-11 0.2839135 0.2839135 0.2839135 ZT12-15 0.480784 0.480784 0.480784 ZT16-19 0.7064305 0.7064305 0.7064305 ZT20-23 0.40692249999999996 0.40692249999999996 0.40692249999999996