condition mean min max 4 h after light 10.506440000000001 9.94658 11.0663 8 h after light 6.40801 6.29922 6.5168 12 h after light 8.451155 7.46929 9.43302 4 h after dark 12.2729 11.5824 12.8221 8 h after dark 14.384666666666666 14.011 15.0681 12 h after dark 11.3936 10.1819 12.0857