The Croatian economy with a population of 4.28 Million (Census 2011) ranks 77th in the world. It has a GDP PPP of 79.67 billion (IMF 2012) and GDP PPP per capita of 17,810 vs 49,922 (United States) according to the IMF in 2012. Its currency is the Croatian kuna (HRK), how it may convert to the Euro currency in the future. Using the to CIA.gov as an inflation rate reference the Croatian inflation was estimated to be 4.7% in 2012 and 2.1% in 2011.