Title: Purchasing Power Parity over GDP for Liberia Series ID: PPPTTLLRA618NUPN Source: University of Pennsylvania Release: Penn World Table 7.1 (Not a Press Release) Seasonal Adjustment: Not Seasonally Adjusted Frequency: Annual Units: National Currency Units per US Dollar Date Range: 1970-01-01 to 2010-01-01 Last Updated: 2012-08-31 2:28 PM CDT Notes: Note: Over GDP, 1 US dollar (US$) = 1 international dollar (I$). Purchasing power parity is the number of currency units required to buy goods equivalent to what can be bought with one unit of the base country. We calculated our PPP over GDP. That is, our PPP is the national currency value of GDP divided by the real value of GDP in international dollars. International dollar has the same purchasing power over total U.S. GDP as the U.S. dollar in a given base year. For more information and proper citation see http://www.rug.nl/research/ggdc/data/pwt/pwt-7.1 Source Indicator: ppp DATE VALUE 1970-01-01 0.487498630 1971-01-01 0.460619652 1972-01-01 0.482266060 1973-01-01 0.513759518 1974-01-01 0.559228321 1975-01-01 0.638986391 1976-01-01 0.558732870 1977-01-01 0.586969184 1978-01-01 0.588682338 1979-01-01 0.628723494 1980-01-01 0.638648601 1981-01-01 0.780691016 1982-01-01 0.773716944 1983-01-01 0.756751910 1984-01-01 0.764137785 1985-01-01 0.726285311 1986-01-01 0.710472209 1987-01-01 0.699123393 1988-01-01 0.679901367 1989-01-01 0.655678342 1990-01-01 0.611609556 1991-01-01 0.609701329 1992-01-01 0.601035471 1993-01-01 0.633064807 1994-01-01 0.654140372 1995-01-01 0.683827755 1996-01-01 0.710191066 1997-01-01 0.575116687 1998-01-01 0.537217655 1999-01-01 0.515178965 2000-01-01 0.429022707 2001-01-01 0.398631264 2002-01-01 0.406474223 2003-01-01 0.437338531 2004-01-01 0.513500121 2005-01-01 0.521718808 2006-01-01 0.510575429 2007-01-01 0.475545673 2008-01-01 0.465698870 2009-01-01 0.488584641 2010-01-01 0.480145148