condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.036167425 0.0 0.0779306 3 h after dark 0.028661766666666668 0.0 0.0859853 6 h after dark 0.0247608 0.0 0.0742824 9 h after dark 0.02610206666666667 0.0 0.0783062 12 h after dark 0.0851505 0.0 0.170301