From 1928 to 1939, the volume of passengers travelling between the US and Europe declined sharply. In 1928, the NDL transported about 8% of a passenger volume of 1,168,414 passengers; in 1932, 16.2% of the 751,592 passengers transported; in 1938, around 11% of 685,655 passengers. In addition, there was significant new competition from new Italian, French and British superliners: the Italian SS "Rex" () and SS "Conte di Savoia" (), the French SS "Normandie" (), and the British RMS "Queen Mary" ().