Year constant 2010 US$ 1995 328856451.522338 1996 277474321.774902 1997 239511711.310342 1998 244437886.28423 1999 233722406.058608 2000 225183476.876039 2001 307687283.991428 2002 385239795.066438 2003 441439774.772631 2004 426724398.30039 2005 345200459.934025 2006 387681364.964163 2007 494296676.605278 2008 507561118.626517 2009 461717009.556364 2010 489892298.38942 2011 528383918.756386 2012 574565149.533825 2013 633486020.779267 2014 659995601.534548 2015 677484967.918246 2016 672077761.464785 2017 806898558.225912 2018 933680403.918989