According to the Australian Walk Free Foundation and its annual Global Slavery Index (2016), there are 45.8 million slaves worldwide. 58% of all slaves live in five countries: India, China, Pakistan, Bangladesh und Uzbekistan. All are in the region of and around Pakistan. The highest percentage of slaves are found in North Korea (4.373%), Uzbekistan (3.973%), Cambodia (1.648%), India (1.403%), and Qatar (1.356%).
Along with 15 other Western democracies (above all Western Europe, USA, New Zealand), Germany take the best spot of countries with the lowest percentage of slaves. Brazil takes this spot in the Global South and is in the group of those countries which take second place with a percentage of 0.078%.
According to this index, 1.13% of the population of 188,925,000 people living in Pakistan are slaves. This results in a number of 2,134,900. There are also various other sources where the number of slaves in Pakistan is estimated at 2 million.