condition mean min max 2 h after light 1.0270233333333332 0.950975 1.15176 6 h after light 1.0891876666666667 0.990563 1.14585 10 h after light 1.1736186666666666 0.982766 1.37567 2 h after dark 1.43046 1.21457 1.64453 6 h after dark 1.16282 1.07405 1.23309 10 h after dark 0.9563159999999999 0.861035 1.05697