condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.035366 0.0 0.106098 3 h after dark 0.0285934 0.0 0.0857802 6 h after dark 0.05357766666666666 0.0 0.160733 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0