Year	U.S. dollars (Billions)
1980	3.022
1981	3.022
1982	2.881
1983	2.986
1984	2.949
1985	2.762
1986	2.883
1987	2.834
1988	3.258
1989	3.715
1990	4.222
1991	5.380
1992	4.394
1993	5.056
1994	2.930
1995	3.412
1996	5.569
1997	6.504
1998	4.275
1999	4.336
2000	4.257
2001	4.178
2002	4.922
2003	4.521
2004	4.895
2005	5.148
2006	5.630
2007	6.240
2008	7.492
2009	8.723
2010	9.796
2011	11.241
2012	8.421
2013	7.648
2014	8.526
2015	9.014
2016	7.733
2017	8.943
2018	9.882
2019	11.031
2020	11.847
2021	12.476
2022	12.522
2023	13.127
2024	11.241
2025	11.333
2026	11.698
2027	12.351
2028	13.064
2029	13.837