"Prevalence of Childhood and Adult Obesity in the United States, 2011-2012"
http://jama.jamanetwork.com/article.aspx?articleid=1832542
"Conclusions and Relevance  Overall, there have been no significant changes in obesity prevalence in youth or adults between 2003-2004 and 2011-2012. Obesity prevalence remains high and thus it is important to continue surveillance."