Greetings everyone,
Here is a link with interesting statistical information on NYC ‘s immigrant population:
http://immigration.about.com/od/usimmigrationhistory/a/New-York-City-S-Immigrant-Population-Soars.htm
The article mentions the percentage of immigrants in many service jobs and the number of countries that NYC’s immigrants come from. The average income of immigrant families is also stated. The article does an amazing job at comparing different numbers and percentages over the last 4 decades (1970-2010).