condition mean min max 4 h after light 7619.1686195 7311.078211 7927.259028 8 h after light 5939.6883065 5563.427396 6315.949217 12 h after light 8336.257536000001 8295.209355 8377.305717 4 h after dark 7573.617977 6469.919676 8677.316278 8 h after dark 7264.1511055 5713.147077 8815.155134 12 h after dark 9050.864982 9050.864982 9050.864982