Year U.S. dollars (Billions) 1992 0.864 1993 1.110 1994 1.158 1995 1.441 1996 1.694 1997 1.928 1998 1.697 1999 1.172 2000 1.315 2001 1.481 2002 1.662 2003 1.981 2004 2.598 2005 2.988 2006 3.408 2007 4.401 2008 6.055 2009 5.438 2010 6.977 2011 8.417 2012 8.708 2013 9.496 2014 9.510 2015 7.726 2016 8.072 2017 9.515 2018 11.252 2019 11.737 2020 11.530 2021 13.694 2022 14.550 2023 17.052 2024 18.356 2025 20.190 2026 22.247 2027 24.516 2028 27.022 2029 29.867