1900 | 1910 | 1920 | 1930 | 1940 | 1950 | 1960 | 1970 | 1980 | 1995 |
449 | 1,042 | 430 | 242 | 71 | 249 | 265 | 373 | 531 | 720 |
* The 1986 Immigration Reform and Control Act allowed illegal immigrants already living in the United States to apply for legal status if they met certain requirements, which resulted in a dramatic upswing in immigration figures in the late 1980s and 1990s, totaling about 2.7 million people over that period.
Source: U.S. Immigration and Naturalization Service.