Year current US$ 1989 2849999.90463257 1990 1049999.95231628 1991 14970000.2670288 1992 19170000.0762939 1993 18250000 1994 14970000.2670288 1995 14270000.4577637 1996 16840000.1525879 1997 14920000.076293899 1998 12449999.8092651 1999 8659999.84741211 2000 21059999.4659424 2001 8560000.4196167 2002 9420000.07629395 2003 9840000.15258789 2004 9819999.69482422 2005 5349999.90463257 2006 8970000.26702881 2007 4110000.1335143996 2008 2269999.98092651 2009 2509999.99046326 2010 3250000 2011 4860000.1335144 2012 5079999.92370605 2013 5170000.07629395 2014 1830000.04291534 2015 1080000.04291534 2016 1059999.9427795399 2017 1000000 2018 1019999.98092651 2019 889999.985694885 2020 1409999.9666214 2021 2240000.00953674 2022 1580000.04291534