condition mean min max 3 h after light 52.305933333333336 50.921 53.0942 6 h after light 54.762 47.5922 63.1476 9 h after light 64.26056666666666 54.9617 75.3133 12 h after light 66.334925 58.2785 73.7827 3 h after dark 81.32866666666666 78.1427 84.567 6 h after dark 68.49423333333333 66.0118 71.6321 9 h after dark 51.9392 48.1282 58.4974 12 h after dark 49.1032 48.5247 49.6817