condition mean min max 4 h after light 0.0432942 0.0 0.0865884 8 h after light 0.0 0.0 0.0 12 h after light 0.04284 0.0 0.08568 4 h after dark 0.0 0.0 0.0 8 h after dark 0.05596255 0.0375287 0.0743964 12 h after dark 0.0369469 0.0 0.0738938