condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 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 0.0415885 0.0 0.083177 4 h after dark 0.04029455 0.0 0.0805891 8 h after dark 0.087634 0.0 0.175268 12 h after dark 0.0 0.0 0.0