condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 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 0.073547 0.0 0.147094 4 h after dark 0.0686615 0.0 0.137323 8 h after dark 0.15783950000000002 0.154976 0.160703 12 h after dark 0.0 0.0 0.0