Year	U.S. dollars (Billions)
1980	7.718
1981	8.431
1982	8.539
1983	8.864
1984	9.276
1985	10.951
1986	5.921
1987	6.857
1988	7.426
1989	8.561
1990	7.535
1991	9.174
1992	10.138
1993	11.045
1994	12.482
1995	14.050
1996	14.992
1997	16.982
1998	18.461
1999	17.422
2000	18.124
2001	19.735
2002	21.924
2003	23.092
2004	24.977
2005	28.179
2006	31.308
2007	35.028
2008	40.242
2009	37.997
2010	41.493
2011	47.419
2012	49.902
2013	52.989
2014	57.835
2015	62.180
2016	66.034
2017	71.624
2018	73.331
2019	77.156
2020	77.714
2021	86.041
2022	95.004
2023	102.036
2024	110.035
2025	117.986
2026	126.587
2027	135.893
2028	146.054
2029	156.974