condition mean min max 4 h after light 887.044306 613.253902 1160.83471 8 h after light 918.506482 860.140321 976.872643 12 h after light 535.1049370000001 323.798488 746.411386 4 h after dark 245.689815 209.113627 282.266003 8 h after dark 103.67066200000001 56.305419 151.035905 12 h after dark 158.693595 158.693595 158.693595