One of the fastest growing populations at the end of the twentieth century was Latino and Caribbean Americans. Three major groups have traditionally dominated among U.S. Hispanics. Mexican Americans numbered 20.6 million in the 2000 Census and comprised about 58.5 percent of the Hispanic population of the United States. (For more information about Mexican Americans, see Chapter 21.) Puerto Ricans numbered 3.4 million in the United States and 3.8 million in Puerto Rico and comprised about 9.6 percent of the population. (Puerto Ricans are citizens of the United States. Those who have migrated from Puerto Rico to the mainland should not be considered immigrants.) Cuban Americans numbered 1.2 million and made up about 3.5 percent of the Hispanic population. In 2000 other Hispanic and Caribbean groups were rapidly catching up to the top three and some were, in fact, growing at a faster rate. The Dominicans...