condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0409903 0.0 0.0819806 12 h after light 0.0 0.0 0.0 2 h after dark 0.0856147 0.0820363 0.0891931 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0