Year current US$ 1973 140000.000596046 1974 159999.99642372102 1975 39999.9991059303 1976 79999.9982118607 1977 59999.9986588955 1980 50000.0007450581 1983 189999.99761581398 1984 109999.999403954 1985 129999.995231628 1986 90000.0035762787 1987 129999.995231628 1988 159999.99642372102 1989 119999.997317791 1990 159999.99642372102 1991 150000.005960464 1992 140000.000596046 1993 819999.992847443 1994 1039999.96185303 1995 1889999.98569489 1996 2799999.95231628 1997 2180000.0667572 1998 4469999.79019165 1999 1509999.9904632599 2000 289999.99165535 2001 649999.976158142 2002 1940000.0572204601 2003 8979999.54223633 2004 11640000.3433228 2005 7139999.8664856 2006 8939999.5803833 2007 28170000.0762939 2008 33840000.1525879 2009 15369999.8855591 2010 22840000.1525879 2011 35110000.6103516 2012 34869998.9318848 2013 34290000.9155273 2014 38450000.762939505 2015 34590000.1525879 2016 20600000.3814697 2017 22909999.8474121 2018 10729999.5422363 2019 4820000.17166138 2020 14239999.7711182 2021 3150000.09536743 2022 7829999.92370605