condition mean min max ZT0-3 12.901399999999999 12.75065 13.05215 ZT4-7 10.955165 10.955165 10.955165 ZT8-11 10.78195 10.78195 10.78195 ZT12-15 0 0 0 ZT16-19 11.37485 11.37485 11.37485 ZT20-23 12.014299999999999 12.014299999999999 12.014299999999999