condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 3.1441 0.0 6.2882 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 4 h after dark 3.130625 0.0 6.26125 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0