Year current US$ 1980 140000.000596046 1981 -19999.9995529652 1982 19999.9995529652 1983 -140000.000596046 1985 519999.980926514 1986 50000.0007450581 1987 2200000.04768372 1988 1570000.05245209 1989 2549999.95231628 1990 3799999.95231628 1991 660000.026226044 1992 0 1993 -119999.997317791 1994 2750000 1995 1389999.98569489 1996 1490000.0095367401 1997 860000.014305115 1998 759999.990463257 1999 1409999.9666214 2000 2019999.9809265102 2001 3220000.02861023 2002 5630000.11444092 2003 2279999.97138977 2004 2440000.05722046 2005 3980000.01907349 2006 4500000 2007 4360000.1335144 2008 19239999.7711182 2009 3170000.07629395 2010 1399999.97615814 2011 3029999.97138977 2012 5780000.20980835 2013 5090000.15258789 2014 6849999.90463257 2015 3566684.00764465 2016 3313373.08883667 2017 1381231.5464019799 2018 2189107.89489746 2019 2400454.99801636 2020 499697.983264923 2021 -1029999.97138977 2022 1574349.9994278