condition mean min max 4 h after light 10.635795000000002 9.84359 11.428 8 h after light 7.767329999999999 7.33125 8.20341 12 h after light 10.346245 9.91839 10.7741 4 h after dark 10.78922 9.58584 11.9926 8 h after dark 10.83445 10.7624 10.9065 12 h after dark 12.06715 11.5544 12.5799