Year	U.S. dollars (Billions)
1980	0.089
1981	0.110
1982	0.123
1983	0.132
1984	0.146
1985	0.157
1986	0.174
1987	0.190
1988	0.217
1989	0.232
1990	0.260
1991	0.275
1992	0.300
1993	0.309
1994	0.313
1995	0.341
1996	0.358
1997	0.376
1998	0.403
1999	0.422
2000	0.428
2001	0.462
2002	0.488
2003	0.509
2004	0.550
2005	0.580
2006	0.644
2007	0.714
2008	0.733
2009	0.714
2010	0.720
2011	0.714
2012	0.730
2013	0.765
2014	0.771
2015	0.787
2016	0.814
2017	0.844
2018	0.884
2019	0.911
2020	0.869
2021	0.872
2022	0.947
2023	1.041
2024	1.128
2025	1.195
2026	1.253
2027	1.313
2028	1.375
2029	1.441