Year current US$ 2002 10416 2003 30071822 2004 105816215 2005 24890057 2006 32535935.000000004 2007 33541339 2008 60437283 2009 41629572 2010 42546932 2011 49791717 2012 515049228 2013 402865298 2014 75844719 2015 27510816 2016 29851733 2017 23716335 2018 35347463 2019 75519441 2020 61509349