condition mean min max 4 h after light 12.0837955 11.910711 12.25688 8 h after light 10.2824695 9.427404 11.137535 12 h after light 11.345660500000001 11.137535 11.553786 4 h after dark 11.057467500000001 11.00408 11.110855 8 h after dark 10.196192 8.470709 11.921675 12 h after dark 11.757774 11.757774 11.757774