Year	U.S. dollars (Billions)
1980	10.873
1981	13.005
1982	14.932
1983	15.294
1984	13.915
1985	12.556
1986	15.874
1987	7.821
1988	7.474
1989	6.444
1990	5.172
1991	6.019
1992	5.588
1993	5.170
1994	5.478
1995	6.382
1996	7.889
1997	9.341
1998	11.481
1999	11.777
2000	12.369
2001	12.610
2002	13.123
2003	14.159
2004	15.576
2005	17.174
2006	18.878
2007	21.810
2008	27.779
2009	29.301
2010	31.860
2011	34.369
2012	39.650
2013	45.677
2014	49.982
2015	47.424
2016	49.774
2017	53.275
2018	54.775
2019	58.797
2020	63.373
2021	67.964
2022	74.128
2023	79.447
2024	79.605
2025	86.126
2026	93.739
2027	103.022
2028	113.481
2029	124.968