Year current US$ 1992 6142000000 1993 6529000000 1994 7304000000 1995 9492000000 1996 9423000000 1997 9357000000 1998 10110000000 1999 10102000000 2000 10147000000 2001 10160000000 2002 10944000000 2003 13845000000 2004 17759000000 2005 20337000000 2006 24141000000 2007 31559000000 2008 37034000000 2009 26507000000 2010 30094000000 2011 35531000000 2012 32035000000 2013 33373000000 2014 33934000000 2015 29815000000 2016 30537000000 2017 36078000000 2018 42267000000 2019 44007000000 2020 42225000000 2021 57560000000 2022 69761000000 2023 71445000000