condition mean min max 2 h after light 0.021947499999999998 0.0 0.131685 6 h after light 0.0 0.0 0.0 10 h after light 0.0 0.0 0.0 14 h after light 0.0 0.0 0.0 18 h after light 0.021247166666666668 0.0 0.127483 2 h after dark 0.027348 0.0 0.164088