Year	U.S. dollars (Billions)
1980	21.425
1981	20.423
1982	21.313
1983	20.618
1984	19.883
1985	21.168
1986	28.516
1987	33.660
1988	36.875
1989	38.030
1990	48.199
1991	48.840
1992	54.911
1993	51.364
1994	55.843
1995	69.260
1996	75.928
1997	82.957
1998	90.305
1999	98.993
2000	100.253
2001	109.347
2002	128.505
2003	164.630
2004	194.283
2005	211.993
2006	232.193
2007	270.112
2008	275.417
2009	236.187
2010	222.096
2011	239.129
2012	225.262
2013	238.115
2014	259.750
2015	292.394
2016	298.477
2017	337.124
2018	386.868
2019	398.977
2020	428.266
2021	513.733
2022	533.559
2023	545.787
2024	564.020
2025	586.864
2026	612.631
2027	639.446
2028	667.930
2029	696.950