condition mean min max 2 h after light 1.817557 0.834782 2.23986 6 h after light 1.0952335 0.693799 1.51572 10 h after light 1.3521633333333334 0.241137 2.91574 14 h after light 1.0407681666666666 0.80303 1.52384 18 h after light 1.3795488333333332 0.76317 2.1687 2 h after dark 1.0075353333333334 0.404786 1.39354