According to A Global Report on Trafficking in Persons launched today by the United Nations Office on Drugs and Crime (UNODC), the most common form of human trafficking (79%) is sexual exploitation. The victims of sexual exploitation are predominantly women and girls. Surprisingly, in 30% of the countries which provided information on the gender of traffickers, women make up the largest proportion of traffickers. In some parts of the world, women trafficking is the norm.
The second most common form of human trafficking is forced labour (18%), although this may be a misrepresentation because forced labour is less frequently detected and reported than trafficking for sexual exploitation.
Read the full report (PDF).