condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.4155535 0.0 0.831107 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 0.191873 0.0 0.383746 4 h after dark 0.365213 0.0 0.730426 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0