condition mean min max 3 h after light 0.0856504 0.0 0.158673 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.037736 0.0 0.113208 3 h after dark 0.074711 0.0 0.224133 6 h after dark 0.0 0.0 0.0 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0