Year current US$ 1970 19999.9995529652 1971 29999.999329447703 1972 19999.9995529652 1973 29999.999329447703 1974 9999.99977648258 1975 19999.9995529652 1976 39999.9991059303 1977 79999.9982118607 1978 70000.0002980232 1979 150000.005960464 1980 140000.000596046 1981 209999.993443489 1982 109999.999403954 1983 140000.000596046 1984 59999.9986588955 1985 100000.00149011599 1986 340000.00357627904 1987 140000.000596046 1988 300000.011920929 1989 209999.993443489 1990 439999.997615814 1991 610000.014305115 1992 660000.026226044 1993 720000.028610229 1994 769999.980926514 1995 740000.009536743 1996 1110000.01430511 1997 769999.980926514 1998 889999.985694885 1999 629999.995231628 2000 740000.009536743 2001 629999.995231628 2002 819999.992847443 2003 689999.997615814 2004 810000.002384186 2005 1419999.95708466 2006 800000.011920929 2007 1090000.0333786 2008 1029999.97138977 2009 1299999.95231628 2010 790000.021457672 2011 910000.026226044 2012 928190.231323242 2013 1390656.23283386 2014 2290988.92211914 2015 1620441.91360474 2016 2256979.7039032 2017 1685999.9895095802 2018 1973408.1029892 2019 2351000.0705719 2020 1942000.03147125 2021 1447000.02670288 2022 1733000.04005432