condition mean min max 4 h after light 12.254293333333333 7.57968 16.2966 8 h after light 7.20266 1.83933 11.9192 12 h after light 7.54873 4.05736 12.1419 4 h after dark 8.300283333333333 6.15909 9.79145 8 h after dark 9.63228 6.97404 10.9666 12 h after dark 14.459670000000001 9.97071 17.8975