According to a new index released Thursday, nearly 30 million people live in slavery around the world.
Those figures are from an anti-slavery group called the "Walk Free Foundation."
It has ranked 162 countries by the number of people in those nations where men and women are trafficked by criminals for unskilled labor and sex.
The index also includes the risk of enslavement and strength of a government's response to the illegal activity.
Just ten countries account for 76 percent of all slavery, almost 30 million people who live as slaves.
They are India, China, Pakistan, Nigeria, Ethiopia, Russia, Thailand, the Democratic Republic of Congo, Mynamar and Bangladesh.
Modern slavery is defined as human trafficking, forced labor and practices such as debt bondage, forced marriage and the sale or exploitation of children.