Prostitution law
However, sex worker activists and organizations distinguish between human trafficking and legitimate sex work, and assert the importance of recognizing that trafficking is not synonymous with sex work. The Sex Workers Alliance Ireland organization explains: "victims of human trafficking may be forced to work in industries such as agriculture, domestic service as well as the sex industry. It is critical to distinguish human trafficking, which is a violation of human rights, from voluntary migration." The Open Society Foundations organization states: "sex work is done by consenting adults, where the act of selling or buying sexual services is not a violation of human rights. In fact, sex workers are natural allies in the fight against trafficking. The UNAIDS Guidance Note on HIV and Sex Work recognizes that sex worker organizations are best positioned to refer people who are victims of trafficking to appropriate services."
Human trafficking
According to estimates from the International Labour Organization (ILO), every year the human trafficking industry generates 32 billion USD, half of which ($15.5 billion) is made in industrialized countries, and a third of which ($9.7 billion) is made in Asia. A 2011 paper published in "Human Rights Review", "Sex Trafficking: Trends, Challenges and Limitations of International Law", notes that, since 2000, the number of sex-trafficking victims has risen while costs associated with trafficking have declined: "Coupled with the fact that trafficked sex slaves are the single most profitable type of slave, costing on average $1,895 each but generating $29,210 annually, [there are] stark predictions about the likely growth in commercial sex slavery in the future." Sex trafficking victims rarely get a share of the money that they make through coerced sex work, which further keeps them oppressed. , profits from human trafficking were about around 150 billion USD each year ranking it along with drug trafficking as one of the most profitable transnational crimes.