Is there any information on Italian Immigration?

Note: PEW Hispanic Center reported on the March 2005 Current Population Survey (CPS), conducted jointly by the U.S. Bureau of Labor Statistics and the Census Bureau, that they conservatively estimated at least 500,000 Mexicans had crossed the border illegally each year since 2000. The number of illegal Mexican immigrants is thought to be 80-85% of the in flow of Mexican immigrants and their population in the United States now consists of over 50% illegal immigrants. This would significantly increase the 2004 Mexican population estimate by at least 2,000,000 and the 2010 projected population by at least 5,000,000. PEW also reported that there were at least an estimated 7,500,000 unauthorized workers from Mexico and elsewhere (mostly Central America) working in the U.S. in 2005 with household members totaling somewhere between 11.5 and 12.1 million and increasing at 700,000 to 1,500,000 per year or 2,000 to 5,000 per day. Some of these were counted in the 2000 U.S. census and all should not be added arbitrarily to the numbers in the tables. The number of unauthorized workers from other countries besides Mexico is known even less precisely but it is estimated (by PEW) that Mexicans compose approximately 60% of the unauthorized workers with other Latin unathorized workers another ~20%. This would imply that at least 300,000/year additional unauthorized workers illegally cross the border or violate their visa's or border crossing cards each year. (Estimates of the Size and Characteristics of the Undocumented Population) ,(The Underground Labor Force Is Rising To The Surface)