Year current US$ 1995 520717.016442965 1996 548888.589089472 1997 556278.611394182 1998 501824.767376831 1999 535889.079111281 2000 422395.793462187 2001 402104.915715364 2002 488072.613947413 2003 759852.827477125 2004 776944.726701181 2005 502664.577597541 2006 1008906.63182381 2007 855815.80033558 2008 24895567.678608 2009 29512461.2597636 2010 27601218.1356851 2011 46008806.8293419 2012 37485360.4927398 2013 25875551.2033943 2014 27964555.5128833 2015 27878586.1715089 2016 23393195.2776279 2017 28336150.9321946 2018 33923599.091499 2019 34485268.1776568 2020 34161886.8168819 2021 37110957.3360712