condition mean min max 4 h after light 13.144846666666666 11.89715 14.87589 8 h after light 11.913637666666666 9.096203 15.88618 12 h after light 10.163196333333333 8.615744 12.12171 16 h after light 5.775392999999999 2.556437 8.417917 4 h after dark 6.7255503333333335 4.331688 8.114405999999999 8 h after dark 4.210784 2.911922 6.36158