Year	U.S. dollars (Billions)
1980	46.501
1981	50.661
1982	54.252
1983	53.920
1984	53.257
1985	48.581
1986	48.648
1987	50.640
1988	54.592
1989	55.048
1990	56.071
1991	57.954
1992	68.579
1993	77.721
1994	97.665
1995	110.564
1996	116.130
1997	127.490
1998	117.725
1999	103.132
2000	99.270
2001	97.606
2002	97.353
2003	94.072
2004	116.382
2005	145.601
2006	161.793
2007	206.230
2008	242.505
2009	232.469
2010	286.498
2011	334.966
2012	370.691
2013	382.094
2014	381.240
2015	293.492
2016	282.719
2017	311.890
2018	334.124
2019	323.055
2020	270.348
2021	318.525
2022	345.330
2023	363.616
2024	386.076
2025	400.480
2026	417.861
2027	439.433
2028	462.100
2029	485.350