Year	U.S. dollars (Billions)
1980	0.111
1981	0.116
1982	0.125
1983	0.132
1984	0.146
1985	0.168
1986	0.188
1987	0.215
1988	0.236
1989	0.267
1990	0.278
1991	0.301
1992	0.310
1993	0.310
1994	0.325
1995	0.342
1996	0.367
1997	0.392
1998	0.446
1999	0.482
2000	0.520
2001	0.520
2002	0.540
2003	0.591
2004	0.599
2005	0.695
2006	0.699
2007	0.759
2008	0.826
2009	0.771
2010	0.771
2011	0.779
2012	0.800
2013	0.843
2014	0.911
2015	0.997
2016	1.062
2017	1.126
2018	1.167
2019	1.213
2020	1.043
2021	1.123
2022	1.231
2023	1.328
2024	1.406
2025	1.487
2026	1.566
2027	1.644
2028	1.726
2029	1.812