condition mean min max 0 h after light 46.40725 44.3679 48.4466 4 h after light 64.5052 63.8064 65.204 8 h after light 54.0908 50.2358 57.9458 4 h after dark 63.1558 60.7187 65.5929 8 h after dark 59.5601 53.5891 65.5311 12 h after dark 50.67815 48.201 53.1553