Year U.S. dollars (Billions) 1993 -0.086 1994 -0.094 1995 -0.614 1996 -0.723 1997 -0.981 1998 -1.298 1999 -1.194 2000 -0.675 2001 -0.574 2002 -0.734 2003 -1.278 2004 -1.724 2005 -1.929 2006 -3.207 2007 -6.096 2008 -6.353 2009 0.763 2010 0.081 2011 -1.600 2012 -0.675 2013 0.784 2014 1.684 2015 -1.009 2016 -0.461 2017 0.256 2018 0.154 2019 1.940 2020 4.146 2021 0.759 2022 -3.885 2023 1.992 2024 1.021 2025 1.089 2026 1.179 2027 1.349 2028 1.411 2029 1.472