Year current US$ 1970 0 1971 0 1972 19999.9995529652 1973 99999.999627471 1974 19999.9995529652 1975 9999.99977648258 1976 9999.99977648258 1977 29999.999329447703 1978 59999.9986588955 1979 70000.0002980232 1980 89999.9998509884 1981 49999.998882412896 1982 9999.99977648258 1983 9999.99977648258 1984 19999.9995529652 1985 39999.9991059303 1986 29999.999329447703 1987 9999.99977648258 1988 19999.9995529652 1989 29999.999329447703 1990 39999.9991059303 1991 139999.996870756 1992 59999.9986588955 1993 309999.99679625 1994 2059999.9576806999 1995 1780000.0179559 1996 2409999.9722093297 1997 2860000.0254809903 1998 1420000.00178814 1999 1920000.00365078 2000 2530000.01050532 2001 2650000.0115484 2002 5579999.93488193 2003 7789999.95626509 2004 18520000.0945479 2005 19560000.3879517 2006 6559999.96140599 2007 8160000.04298985 2008 12510000.1804531 2009 5979999.866336579 2010 4050000.0230968 2011 9619999.80546534 2012 19229999.948293 2013 10339999.9365211 2014 12010000.070557 2015 8039999.88920987 2016 6280000.08314848 2017 18219999.9988079 2018 8900000.04507601 2019 15269999.9213219 2020 11140000.032261 2021 15909999.5829165 2022 10850000.020116571