Year current US$ 1980 949999.988079071 1981 289999.99165535 1982 8359999.65667725 1983 8829999.92370605 1984 6659999.84741211 1985 5280000.20980835 1986 5110000.1335144 1987 14670000.076293899 1988 10979999.5422363 1989 10850000.3814697 1990 16469999.3133545 1991 16989999.7711182 1992 11909999.8474121 1993 6250000 1994 9899999.61853027 1995 9989999.77111816 1996 6260000.228881841 1997 -769999.980926514 1998 -800000.011920929 1999 170000.00178813902 2000 3210000.03814697 2001 1990000.0095367401 2002 3220000.02861023 2003 5159999.84741211 2004 3140000.10490417 2005 3640000.10490417 2006 3569999.9332428 2007 15449999.8092651 2008 7389999.8664856 2009 4610000.1335144 2010 3029999.97138977 2011 1820000.05245209 2012 2180000.0667572 2013 2910000.08583069 2014 2650000.09536743 2015 1820000.05245209 2016 1710000.03814697 2017 2049999.9523162802 2018 1720000.02861023 2019 2349999.90463257 2020 4030000.2098083496 2021 5679999.82833862 2022 7090000.15258789