condition mean min max 4 h after light 11.96445 10.2182 13.7107 8 h after light 9.196245000000001 9.03039 9.3621 12 h after light 13.1167 12.5597 13.6737 4 h after dark 16.5388 15.69 17.3876 8 h after dark 14.7668 14.2494 15.2842 12 h after dark 14.33465 13.852 14.8173