Year current US$ 1995 1346000000 1996 1398000000 1997 1416000000 1998 1354000000 1999 1583000000 2000 1738000000 2001 1648000000 2002 1760000000 2003 1757000000 2004 1884000000 2005 2071000000 2006 2056000000 2007 2187000000 2008 2144000000 2009 2014000000 2010 2147000000 2011 2142000000 2012 2311000000 2013 2285000000 2014 2316000000 2015 2537000000 2016 3074000000 2017 2930000000 2018 3728000000 2019 4125000000 2020 1002000000