condition mean min max 4 h after light 4.97247 4.65305 5.29189 8 h after light 4.281185 3.63601 4.92636 12 h after light 3.6099449999999997 2.89165 4.32824 4 h after dark 3.913955 3.75814 4.06977 8 h after dark 4.973595 4.83358 5.11361 12 h after dark 4.56222 4.32865 4.79579