condition mean min max 2 h after light 1.374855 1.07428 1.89114 6 h after light 1.1095768333333333 0.65955 1.57702 10 h after light 0.726549 0.549623 0.961942 14 h after light 0.7652013333333333 0.502619 1.09821 18 h after light 1.5007116666666667 1.0437 2.75173 2 h after dark 1.9547700000000001 1.46804 2.98573