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 0.09102700000000001 0.0 0.273081 6 h after dark 0.130252 0.0 0.390756 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0