Year current US$ 1992 1206000000 1993 1199000000 1994 1484000000 1995 1719000000 1996 1627000000 1997 1779000000 1998 1915000000 1999 1776000000 2000 2094000000 2001 1694000000 2002 1995000000 2003 2306000000 2004 2932000000 2005 3228000000 2006 3763000000 2007 5281000000 2008 6883000000 2009 5073000000 2010 5474000000 2011 7027000000 2012 6522000000 2013 6620000000 2014 7301000000 2015 6427000000 2016 6758000000 2017 7723000000 2018 9050000000 2019 9471000000 2020 8715000000 2021 11386000000 2022 12755000000 2023 12056000000