Types of work done by illegal immigrants and other data from the Pew Hispanic Center

The Center released today a report which updates its findings from 2005. I have listed below some of the more interesting findings:
1. The total undocumented population now is 11.5 – 12 million. The population continues to grow at 500,000 per year. There are in total about 37 million immigrants in the United States.
2. The number of undocumented workers as of 3/05 was 7.2 million. (I extrapolate that to a March 2006 estimate of 7.6 million ) This is equal to about 5% of the American workforce.
3. Some 55-60% of these undocumented workers are in formal employment and are paying social security taxes, which go into a Social Security suspense file when the Soc Sec # is unverifiable.
4. About 3 million of the 7.2 million workers are in occupations in which undocumented workers account for at least 15% of total employment in that occupation. These include construction labor (25%), cooks (20%). Maids and housecleaners (22%), and grounds maintenance (25%). among roofers, 29% of the total workforce is estimated to be undocumented workers.
5. One half of undocumented working men here are single. But a phenomenal 94% of undocumented men work compared to 83% for native Americans. Undocumented women participate much less than native women in the workforce (54% vs. 72%) This explains th image of a very large single male workforce as the tpyical undocumented immigrant.