condition mean min max 4 h after light 14.57066 7.09858 21.7395 8 h after light 10.17198 2.78354 16.7871 12 h after light 16.342713333333332 9.71744 26.19 4 h after dark 18.4691 15.2741 20.8862 8 h after dark 14.697066666666668 10.6148 17.3226 12 h after dark 17.214333333333332 12.7552 19.9482