condition mean min max 0 h after light 10.7922 10.4965 11.0879 4 h after light 2.3064150000000003 1.64134 2.97149 8 h after light 2.5297549999999998 2.46765 2.59186 4 h after dark 9.25404 8.5564 9.95168 8 h after dark 6.62599 5.78013 7.47185 12 h after dark 11.6041 11.1171 12.0911