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 0.0 0.0 0.0 3 h after dark 1.3681066666666668 0.0 4.10432 6 h after dark 0.5418366666666666 0.0 1.62551 9 h after dark 0.0 0.0 0.0 12 h after dark 0.628985 0.0 1.25797