condition mean min max 3 h after light 8.814983333333334 5.29089 11.7749 6 h after light 12.441790000000001 9.61757 14.692 9 h after light 9.872816666666667 8.49975 11.2673 12 h after light 12.41985 11.3823 14.0242 3 h after dark 16.474 14.5329 17.6221 6 h after dark 12.5138 11.1858 13.1913 9 h after dark 10.39286 9.98428 10.928 12 h after dark 11.98955 11.6612 12.3179