Way less than we stopped.
Unless you have some hard figures on how many we did not see...
Census 2000 results indicate that there between 8 and 11 million illegal aliens living in the United States in 2000. The Center for Immigration Studies has reported that Census Bureau stats show that 700,000 to 800,000 new illegal aliens were settling in the U.S. during the late 1990s and that around 1 million settled in the most recent year of record. Far more than that enter illegally each year, but there is a lot of back and forth. The 1 million represents illegals who truly settle in for at least a couple of years, and usually much, much longer. (
http://www.numbersusa.com/interests/illegalimm.html) Way less than we stopped?