condition mean min max 4 h after light 1.42416 1.39834 1.44998 8 h after light 1.70159 1.63458 1.7686 12 h after light 2.04288 2.01136 2.0744 4 h after dark 1.8421800000000002 1.56197 2.00171 8 h after dark 2.02621 1.66339 2.3285 12 h after dark 1.4985266666666668 1.19781 1.78543