condition mean min max 2 h after light 3.2933149999999998 2.24945 4.15908 6 h after light 5.012501666666667 3.47372 6.48611 10 h after light 3.7589816666666667 3.05582 4.70878 14 h after light 3.8723583333333336 2.13363 6.2068 18 h after light 4.010015 1.87161 7.3226 2 h after dark 2.7112000000000003 1.81953 4.18356