Year current US$ 1991 250000 1992 4010000.2288818406 1993 1649999.97615814 1994 189999.99761581398 1995 300000.011920929 1996 439999.997615814 1997 990000.009536743 1998 1100000.02384186 1999 5329999.92370605 2000 400000.00596046395 2001 3799999.95231628 2002 3950000.04768372 2003 5409999.84741211 2004 5710000.03814697 2005 8590000.15258789 2006 12539999.961853001 2007 11939999.5803833 2008 11270000.4577637 2009 10390000.3433228 2010 10899999.6185303 2011 13250000 2012 12149999.6185303 2013 11680000.3051758 2014 12289999.961853001 2015 9359999.65667725 2016 9260000.22888184 2017 11479999.5422363 2018 11210000.038146999 2019 13510000.2288818 2020 13199999.8092651 2021 14770000.4577637 2022 13729999.5422363