Year	U.S. dollars (Billions)
1980	89.412
1981	93.150
1982	85.897
1983	96.205
1984	84.838
1985	64.481
1986	73.399
1987	96.533
1988	104.010
1989	108.070
1990	126.027
1991	135.227
1992	146.970
1993	147.236
1994	153.569
1995	171.736
1996	163.340
1997	169.004
1998	152.885
1999	151.426
2000	151.855
2001	135.527
2002	129.385
2003	197.017
2004	256.188
2005	288.749
2006	304.055
2007	332.650
2008	316.491
2009	331.184
2010	417.315
2011	458.708
2012	434.400
2013	400.877
2014	381.195
2015	346.663
2016	323.493
2017	381.317
2018	405.093
2019	389.245
2020	338.193
2021	420.009
2022	405.106
2023	377.676
2024	373.233
2025	384.765
2026	398.062
2027	413.042
2028	427.660
2029	442.857