condition mean min max 4 h after light 10.427211 10.264619 10.589803 8 h after light 11.122377499999999 10.10766 12.137095 12 h after light 10.7498045 9.484898 12.014711 4 h after dark 11.2534315 11.178279 11.328584 8 h after dark 10.1595725 9.617933 10.701212 12 h after dark 15.198615 15.198615 15.198615