Year	U.S. dollars (Billions)
1985	4.831
1986	3.291
1987	3.872
1988	3.689
1989	4.109
1990	4.923
1991	5.254
1992	5.526
1993	5.588
1994	6.002
1995	7.153
1996	7.204
1997	7.043
1998	5.353
1999	5.779
2000	6.650
2001	6.206
2002	6.475
2003	7.266
2004	8.723
2005	10.561
2006	12.710
2007	13.571
2008	15.949
2009	11.892
2010	13.707
2011	18.525
2012	19.048
2013	18.094
2014	17.098
2015	12.930
2016	11.400
2017	12.128
2018	13.567
2019	13.469
2020	12.006
2021	14.006
2022	16.682
2023	15.128
2024	15.510
2025	16.319
2026	17.025
2027	17.771
2028	18.678
2029	19.769