condition mean min max ZT0-3 10.682176 10.682176 10.682176 ZT4-7 10.171529 10.171529 10.171529 ZT8-11 12.083912999999999 12.083912999999999 12.083912999999999 ZT12-15 10.525476 10.525476 10.525476 ZT16-19 11.984171 11.984171 11.984171 ZT20-23 10.824992 10.824992 10.824992