Year	U.S. dollars (Billions)
1980	-2.799
1981	-3.166
1982	-3.393
1983	-3.207
1984	-2.416
1985	-4.811
1986	-4.564
1987	-4.848
1988	-7.203
1989	-5.961
1990	-9.624
1991	-1.170
1992	-4.913
1993	-1.160
1994	-3.369
1995	-5.897
1996	-4.496
1997	-5.502
1998	-4.037
1999	-4.697
2000	-2.666
2001	3.400
2002	6.344
2003	14.082
2004	-2.470
2005	-9.901
2006	-9.565
2007	-15.736
2008	-27.914
2009	-38.437
2010	-47.867
2011	-78.200
2012	-87.843
2013	-32.257
2014	-26.788
2015	-22.086
2016	-14.351
2017	-48.662
2018	-57.183
2019	-24.551
2020	24.011
2021	-38.693
2022	-66.970
2023	-43.073
2024	-55.124
2025	-69.203
2026	-86.242
2027	-103.833
2028	-125.787
2029	-147.947