condition mean min max 4 h after light 9.973914 9.054237 10.893591 8 h after light 9.545763 9.022631 10.068895 12 h after light 11.6770955 11.053742 12.300449 4 h after dark 14.077999000000002 11.98905 16.166948 8 h after dark 10.242841 8.514628 11.971054 12 h after dark 11.964403 11.964403 11.964403