condition mean min max ZT0-3 0.8064849999999999 0.8064849999999999 0.8064849999999999 ZT4-7 0.22745549999999998 0.22745549999999998 0.22745549999999998 ZT8-11 0.09722014999999999 0.09722014999999999 0.09722014999999999 ZT12-15 0.38073100000000004 0.38073100000000004 0.38073100000000004 ZT16-19 0.64069 0.64069 0.64069 ZT20-23 0.8299065 0.8299065 0.8299065