condition mean min max ZT0-3 0.0988225 0.0 0.149926 ZT4-7 0.0691755 0.0691755 0.0691755 ZT8-11 0.8740184999999999 0.8740184999999999 0.8740184999999999 ZT12-15 0.81811525 0.799011 0.8372195 ZT16-19 1.0302405 1.0302405 1.0302405 ZT20-23 0.079376 0.079376 0.079376