condition mean min max 4 h after light 2.18765 0.0 3.64323 8 h after light 2.897943 0.880149 5.0952 12 h after light 3.0789400000000002 2.04963 3.8357 4 h after dark 2.60863 1.96738 3.02169 8 h after dark 3.48359 2.34766 4.78039 12 h after dark 3.37704 3.21821 3.57611