condition mean min max 4 h after light 9.736980500000001 8.029137 11.444824 8 h after light 10.33466 9.607642 11.061678 12 h after light 47.9939955 25.107581 70.88041 4 h after dark 33.5695895 28.292136 38.847043 8 h after dark 144.8385 136.600611 153.076389 12 h after dark 12.580135 12.580135 12.580135