Year current US$ 1985 389999.98569488496 1986 5199999.80926514 1987 870000.004768372 1988 1129999.99523163 1989 3569999.9332428 1990 69800003.0517578 1991 74839996.3378906 1992 27399999.6185303 1993 11899999.6185303 1994 8770000.45776367 1995 24059999.4659424 1996 36610000.6103516 1997 31479999.5422363 1998 40700000.762939505 1999 46490001.6784668 2000 45209999.0844727 2001 26350000.3814697 2002 37349998.4741211 2003 24569999.6948242 2004 15359999.6566772 2005 5309999.94277954 2006 4820000.17166138 2007 27250000 2008 26600000.3814697 2009 32590000.152587898 2010 10810000.4196167 2011 21510000.2288818 2012 17040000.915527303 2013 31190000.5340576 2014 20139999.3896484 2015 13739999.7711182 2016 8409999.84741211 2017 -1789999.96185303 2018 11350000.3814697 2019 14630000.1144409 2020 18889999.3896484 2021 9090000.15258789 2022 14310000.4196167