Source:

United Nations Office on Drugs and Crime (UNODC): Global Report on Trafficking in Persons 2018

--> Shares of forms of exploitation among detected women victims of trafficking in persons, 2016 (or most recent) 54 countries (n=5,440 victims)

Link:

https://www.unodc.org/documents/data-and-analysis/glotip/2018/GLOTiP_2018_BOOK_web_small.pdf