condition mean min max 0 h after light 14.12405 13.0992 15.1489 4 h after light 18.1183 14.4643 21.7723 8 h after light 12.8823 12.7788 12.9858 4 h after dark 9.339455000000001 7.98721 10.6917 8 h after dark 11.121649999999999 10.3653 11.878 12 h after dark 16.48005 14.4874 18.4727