condition mean min max ZT0-3 0.42152175000000003 0.4079165 0.435127 ZT4-7 0.577134 0.577134 0.577134 ZT8-11 0.3431895 0.3431895 0.3431895 ZT12-15 0 0 0 ZT16-19 1.0286635 1.0286635 1.0286635 ZT20-23 0.40041099999999996 0.40041099999999996 0.40041099999999996