Year current US$ 1978 250000 1980 540000.021457672 1981 990000.009536743 1982 1360000.01430511 1983 209999.993443489 1984 39999.9991059303 1985 -250000 1986 209999.993443489 1987 100000.00149011599 1988 3809999.94277954 1989 990000.009536743 1990 2200000.04768372 1991 2069999.9332428002 1992 4929999.82833862 1993 6920000.07629395 1994 9010000.22888184 1995 3269999.98092651 1996 800000.011920929 1997 4429999.82833862 1998 5119999.88555908 1999 7090000.15258789 2000 6780000.20980835 2001 5780000.20980835 2002 2369999.8855590797 2003 5059999.94277954 2004 9999.99977648258 2005 1129999.99523163 2006 3170000.07629395 2007 4940000.05722046 2008 11470000.2670288 2009 9920000.07629395 2010 7380000.11444092 2011 9079999.92370605 2012 14180000.3051758 2013 15649999.6185303 2014 18489999.7711182 2015 11409999.8474121 2016 17159999.8474121 2017 12000000 2018 10420000.076293899 2019 4309999.94277954 2020 5630000.11444092 2021 9220000.26702881 2022 3740000.00953674