"The US added some 27 million residents in the past decade. But that population growth is small, percentage-wise – 9.7 percent. Only during the Great Depression decade was the growth rate lower."
http://www.csmonitor.com/USA/Politi...sus-results-Why-did-US-population-growth-slow
http://www.csmonitor.com/USA/Politi...sus-results-Why-did-US-population-growth-slow