condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.075559 0.0 0.151118 4 h after light 0.1367655 0.0 0.273531 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0671315 0.0 0.134263 8 h after dark 0.1513965 0.0 0.302793 12 h after dark 0.0 0.0 0.0