According to a report by the Center for the Study of Democracy, rackets by organized crime in Bulgaria generate $2.2 Billion (1.7 Billion Euros) in revenue each year.
The black market is estimated to be about 4.7% of the country’s GDP.
The largest black market in Bulgaria is reported to be the prostitution industry, with $845 Million (1.26 Billion Bulgarian Lev) in revenue.
(More racketeering and extortion examples by organized crime.)
Source: “Bulgaria’s Organized Crime Makes BGN 3.5 B Annually, Stable – NGO,” Sofia News, novinite.com, April 3, 2012.