In a slavery system, people are considered as property to be bought and sold, and are coerced to work.
In human history many societies used to recognized slavery as an institutional system. In recent times slavery has been banned in all countries.
Unfortunately this is not true.
In present days slavery is still practiced in many countries in different forms: sexual exploitation, servitude, forced labour, illegal adoptions for labour, child soldiers, forced marriage and organ trade.
The International Labour Organization estimates that 20.9 million people are victims of forced labour globally.
According to the Global Report on Trafficking Persons(2012), at least 136 different nationalities were trafficked in 118 different countries. Twenty-seven per cent of all victims detected globally are children. Of every three child victims, two are girls and one is a boy.
Women account for 55%-60% of all trafficking victims detected globally; women and girls together account for about 75%.
This project presents the cost of human life through different periods in human history.
The dataset is provided by The Kantar Information is Beautiful Awards and is available at http://bit.ly/human_costs.
Another source of information presented is Havocscope, a web site reporting accurate and unbiased data about the black market.
For a full insight on the Trafficking of Persons: Global Report on Trafficking Persons(2012) by the United Nations