condition mean min max 4 h after light 0.088538 0.0 0.177076 8 h after light 0.03223025 0.0 0.0644605 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.12462866666666667 0.0 0.236148 12 h after dark 0.07327166666666667 0.0 0.219815