Year	U.S. dollars (Billions)
1980	6.665
1981	7.374
1982	6.467
1983	5.506
1984	5.708
1985	5.339
1986	4.214
1987	4.441
1988	4.260
1989	4.502
1990	6.266
1991	5.579
1992	6.384
1993	5.804
1994	5.946
1995	6.861
1996	7.761
1997	9.976
1998	8.488
1999	11.266
2000	18.085
2001	17.498
2002	19.334
2003	23.716
2004	30.651
2005	44.636
2006	58.629
2007	75.987
2008	112.621
2009	88.196
2010	119.707
2011	167.775
2012	186.834
2013	198.728
2014	206.225
2015	161.740
2016	151.732
2017	161.099
2018	183.335
2019	176.371
2020	144.411
2021	179.732
2022	236.258
2023	234.218
2024	244.686
2025	251.898
2026	268.995
2027	289.377
2028	302.323
2029	312.262