condition mean min max 4 h after light 5.49977 5.05076 5.94878 8 h after light 5.9862 5.91669 6.05571 12 h after light 9.170480000000001 8.93491 9.40605 4 h after dark 11.02735 10.4387 11.616 8 h after dark 8.266545 7.57538 8.95771 12 h after dark 6.248155000000001 5.64024 6.85607