condition mean min max 3 h after light 1.53107 1.01044 1.85509 6 h after light 1.7700366666666667 1.73262 1.80939 9 h after light 3.65742 2.54647 4.89773 12 h after light 2.4891075000000003 2.09349 2.785 3 h after dark 2.97479 2.72175 3.22144 6 h after dark 5.066046666666667 4.40322 6.1478 9 h after dark 2.1092 1.36747 2.50793 12 h after dark 1.003047 0.815674 1.19042