condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0875255 0.0 0.175051 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.072397 0.0 0.144794 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0