National Human Trafficking Resource Center (NHTRC)

https://polarisproject.org/human-trafficking/facts

Although slavery is commonly thought to be a thing of the past, human traffickers generate hundreds of billions of dollars in profits by trapping millions of people in horrific situations around the world, including here in the U.S. Traffickers use violence, threats, deception, debt bondage, and other manipulative tactics to force people to engage in commercial sex or to provide labor or services against their will.

This site contains statistics from the NHRTC and the Polaris BeFree Textline.

https://polarisproject.org/human-trafficking/facts