condition mean min max 4 h after light 5.58657 5.5041 5.65073 8 h after light 5.474926666666667 5.382219999999999 5.65742 12 h after light 5.65126 5.32374 5.91833 4 h after dark 5.607536666666666 5.51322 5.6836400000000005 8 h after dark 5.7292 5.67018 5.80825 12 h after dark 5.86669 5.81628 5.9515