The number of illegal immigrants peaked at about 12 million in 2007 and since that time has declined. According to the nonpartisan Pew Research Center, the estimated population of illegal immigrants in the U.S. rose rapidly in the 1990s, from an estimated 3.5 million in 1990 to a peak of 12.2 million in 2007, then dropped sharply during the Great Recession before stabilizing in 2009.
IT consultant. An IT consultant works in partnership with clients, advising them how to use information technology in order to meet their business objectives or overcome problems. They work to improve the structure and efficiency of IT systems in various organisations.
Video: What Does a Consultant Do? Consultants are paid to share their expertise and knowledge to help businesses attain goals and solve problems. Learn about the training, job duties and requirements to see if this is the right career for you.