Year current US$ 2000 1693329.2440343292 2001 1816449.6271416468 2002 1860952.328173499 2003 2091232.0661204192 2004 2114209.0616524187 2005 2128948.057730094 2006 1972931.6785808145 2007 2329566.7541369894 2008 2655643.704211955 2009 2117472.541099635 2010 2165739.126127473 2011 2622070.1563649154 2012 4796122.596683996 2013 5190458.399583721 2014 5634584.89241123 2015 5618928.8477864005