condition mean min max ZT0-3 69.38504999999999 68.54339999999999 70.2267 ZT4-7 82.54785000000001 82.54785000000001 82.54785000000001 ZT8-11 174.985 174.985 174.985 ZT12-15 0 0 0 ZT16-19 223.2175 223.2175 223.2175 ZT20-23 145.7715 145.7715 145.7715