condition mean min max 4 h after light 210.115776 144.419821 275.811731 8 h after light 134.500455 125.579359 143.421551 12 h after light 126.2858925 118.108959 134.462826 4 h after dark 114.498917 106.541935 122.455899 8 h after dark 139.4287615 126.219188 152.638335 12 h after dark 156.907316 156.907316 156.907316