Year current US$ 1977 90000.0035762787 1978 150000.005960464 1979 219999.998807907 1980 529999.971389771 1981 1240000.0095367401 1982 430000.00715255697 1983 600000.023841858 1984 419999.986886978 1985 1009999.99046326 1986 2099999.90463257 1987 2329999.92370605 1988 2480000.01907349 1989 860000.014305115 1990 1600000.02384186 1991 1559999.9427795399 1992 1100000.02384186 1993 3029999.97138977 1994 1919999.95708466 1995 2049999.9523162802 1996 2009999.9904632599 1997 1899999.97615814 1998 2759999.99046326 1999 1340000.0333786 2000 1080000.04291534 2001 1909999.9666214 2002 2710000.03814697 2003 5150000.09536743 2004 11449999.8092651 2005 13170000.076293899 2006 19270000.4577637 2007 25649999.6185303 2008 24149999.6185303 2009 15029999.7329712 2010 14100000.3814697 2011 6530000.20980835 2012 6750000 2013 6860000.1335144 2014 7889999.8664856 2015 5780000.20980835 2016 6050000.19073486 2017 6480000.01907349 2018 6579999.92370605 2019 5989999.771118159 2020 7000000 2021 6389999.8664856 2022 9779999.73297119