Year U.S. dollars (Billions) 1995 2.473 1996 2.367 1997 1.839 1998 1.648 1999 2.272 2000 2.688 2001 1.770 2002 1.798 2003 2.119 2004 2.479 2005 2.615 2006 2.850 2007 3.379 2008 3.606 2009 3.147 2010 3.251 2011 3.479 2012 3.170 2013 3.319 2014 3.385 2015 2.846 2016 2.940 2017 2.924 2018 4.610 2019 6.202 2020 6.329 2021 6.765 2022 6.250 2023 6.387 2024 6.537 2025 7.110 2026 7.434 2027 7.722 2028 8.044 2029 8.362