condition mean min max ZT0-3 0.0031150899999999996 0.0031150899999999996 0.0031150899999999996 ZT4-7 0.0351318 0.0351318 0.0351318 ZT8-11 0.04660985 0.04660985 0.04660985 ZT12-15 0.037299399999999996 0.037299399999999996 0.037299399999999996 ZT16-19 0.0 0.0 0.0 ZT20-23 0.015607933333333332 0.015607933333333332 0.015607933333333332