According to this report, 29.8 million people live in modern slavery globally, out of which nearly 4000 in Lebanon. Honestly speaking, I am not sure how accurate this report is as it is estimated that Lebanese families employ more than 200,000 migrant domestic workers mainly from Sri Lanka, Ethiopia and the Philippines and the way of recruiting these workers can be best described as Lebanon’s Polished Version Of Modern Slavery.
You can check out the full rankings [Here].
The Global Slavery Index provides a ranking of 162 countries, reflecting a combined measure of three factors: estimated prevalence of modern slavery by population, a measure of child marriage, and a measure of human trafficking in and out of a country. The measure is heavily weighted to reflect the first factor, prevalence. A number one ranking is the worst, 160 is the best. [Source]