While cocaine manufacture and trafficking have had a serious impact in the Western hemisphere, there are indications that overall global availability of cocaine has fallen. The estimated net area under coca bush cultivation as of 31 December 2012 was the lowest since the beginning of available estimates in 1990: 133,700 hectares, a decline of 14% from 2011.
The price of cocaine has dropped by 80-90% over the last three decades. According to the United Nations World Drug data, the retail price on the streets of the Western Europe has dropped by 29.4% to USD 83 per gram in between 1990-2012. Portugal and Netherlands offers the lowest prices in Europe, according to the UN and Europol data.
More details at www.helgilibrary.com/indicators/index/cocaine-retail-price-street-prices