National Human Trafficking Resource Center2015-01-142015-01-142014National Human Trafficking Resource Center (2014). Human trafficking trends in the United States: 2007-2012. Washington,DC: Polaris Project.http://www.polarisproject.org/human-trafficking/overview/human-trafficking-trendshttp://hdl.handle.net/11212/2077Since 2007, the National Human Trafficking Resource Center (NHTRC), operated by Polaris, has worked closely with local partners to help tens of thousands of callers connect with the help and services they need. As a result of the calls, emails, and online tip reports fielded by the hotline over the course of our first five years of operation, the NHTRC maintains one of the most extensive data sets on the issue of human trafficking in the United States.en-UStraffickingstatisticstrendschild prostitutionsex traffickingcommercial sexual exploitationArticle