American opinion regarding how immigrants affect the country and how the government should respond to illegal immigration have changed over time. In 2006, out of all U.S. adults surveyed, 28% declared that they believed the growing number of immigrants helped American workers and 55% believed that it hurt American workers. In 2016, those views had changed, with 42% believing that they helped and 45% believing that they hurt. The PRRI 2015 American Values Atlas showed that between 46% and 53% of Americans believed that "the growing number of newcomers from other countries ... strengthens American society." In the same year, 57% and 66% of Americans chose that the U.S. should "allow living in the U.S. illegally a way to become citizens provided they meet certain requirements."