condition mean min max 4 h after light 12.0347765 10.690654 13.378899 8 h after light 10.9659885 10.200791 11.731186 12 h after light 9.66638 9.045179 10.287581 4 h after dark 10.054758 9.821935 10.287581 8 h after dark 10.27234 9.957052 10.587628 12 h after dark 11.731272 11.731272 11.731272