condition mean min max 0 h after light 50.98115 50.2012 51.7611 2 h after light 73.00715 72.3064 73.7079 4 h after light 47.8654 47.8343 47.8965 8 h after light 11.3585 9.6983 13.0187 12 h after light 9.923055 9.46771 10.3784 2 h after dark 3.73688 3.68368 3.79008 4 h after dark 5.42351 4.89621 5.95081 8 h after dark 13.28435 12.1086 14.4601 12 h after dark 46.77045 43.3477 50.1932