Year	U.S. dollars (Billions)
1980	2.664
1981	2.932
1982	3.050
1983	3.273
1984	3.627
1985	4.028
1986	4.475
1987	2.205
1988	1.450
1989	1.340
1990	1.706
1991	1.530
1992	0.918
1993	1.107
1994	3.054
1995	4.846
1996	5.000
1997	5.748
1998	6.408
1999	7.148
2000	6.810
2001	6.285
2002	6.064
2003	4.866
2004	6.037
2005	7.186
2006	7.507
2007	9.522
2008	10.488
2009	11.598
2010	11.852
2011	13.009
2012	13.709
2013	14.904
2014	15.137
2015	14.831
2016	13.996
2017	15.036
2018	16.454
2019	14.787
2020	14.508
2021	21.017
2022	19.826
2023	21.533
2024	24.046
2025	24.359
2026	24.214
2027	24.158
2028	24.582
2029	25.372