Year U.S. dollars (Billions) 1992 0.291 1993 0.678 1994 0.829 1995 0.569 1996 1.052 1997 1.121 1998 1.320 1999 1.087 2000 0.991 2001 1.057 2002 1.212 2003 1.555 2004 2.073 2005 2.311 2006 2.811 2007 3.712 2008 5.135 2009 4.977 2010 5.642 2011 6.523 2012 7.592 2013 8.506 2014 9.242 2015 7.857 2016 6.994 2017 7.535 2018 7.762 2019 8.301 2020 8.134 2021 8.934 2022 10.493 2023 11.855 2024 12.953 2025 14.118 2026 15.395 2027 16.774 2028 18.199 2029 19.744