condition mean min max 4 h after light 1.1695 1.01285 1.32615 8 h after light 1.20238 1.07297 1.33179 12 h after light 1.939765 1.31064 2.56889 4 h after dark 2.726485 2.55604 2.89693 8 h after dark 2.8581700000000003 2.56314 3.1532 12 h after dark 3.7056449999999996 3.35821 4.05308