http://www.mercurynews.com/ci_14370889?source=most_viewed"Some private researchers, however, are questioning the magnitude of the drop.
"It's very clear the undocumented population basically stopped growing after 2006," said Jeffrey Passel, a demographer with the nonpartisan Pew Hispanic Center. "It's plausible that the numbers have gotten smaller. But the way that they're measuring it, if you compare this estimate with the one two years ago, it overstates the degree of decline."
The report cautioned that changes made to the census survey could have affected the results. The report, produced annually since 2005, is the government's official tabulation of immigrants living here illegally.
Most researchers agree that no matter the size of the population, which is notoriously hard to measure, the rate of illegal immigration dropped sharply during the recession. They disagree, however, on the causes.
# Mexico: 6.65 million (up by 42 percent since 2000)
# El Salvador: 530,000 (up by 25 percent)
# Guatemala: 480,000 (up by 65 percent)
# Honduras: 320,000 (up by 95 percent)
# Philippines: 270,000 (up by 33 percent)
# India: 200,000 (up by 64 percent)
# South Korea: 200,000 (up by 14 percent)
# California: 2.6 million (up by 3 percent since 2000)
# Texas: 1.68 million (up by 54 percent)
# Florida: 720,000 (down by 10 percent)
# New York: 550,000 (up by 1 percent)
# Illinois: 540,000 (up by 24 percent)
# Georgia: 480,000 (up by 115 percent)
# Arizona: 460,000 (up by 42 percent)
Source: U.S. Department of Homeland Security