condition mean min max 2 h after light 0.8408683333333333 0.0 3.04381 6 h after light 1.0734083333333333 0.0 2.21786 10 h after light 0.128473 0.0 0.770838 14 h after light 0.40514866666666666 0.0 1.59231 18 h after light 0.5179045 0.0 2.45168 2 h after dark 0.307354 0.0 0.97048