condition mean min max 4 h after light 15.868708999999999 14.833628 16.90379 8 h after light 15.1920645 14.314516 16.069613 12 h after light 14.407810000000001 13.115973 15.699647 4 h after dark 15.242663499999999 14.934947 15.55038 8 h after dark 16.4363785 15.906409 16.966348 12 h after dark 15.341971 15.341971 15.341971