Dominicans have become the second largest group, with 18.8 percent. In the City like in the State and the country as a whole, a considerable percentage of people did not identify with anyone of the nationality categories offered by the Census. They preferred to select "Other Hispanics." At the City and State level, people of South American origins constitute a large category (11.8%), compared with the National level where they constitute only 3.8 percent. On the other hand, during the last two decades Mexicans in New York have become a rapidly growing segment of the Hispanic population and represent already the fifth largest category.