Year	U.S. dollars (Billions)
1980	45.957
1981	48.156
1982	48.599
1983	51.582
1984	55.906
1985	66.346
1986	66.783
1987	68.698
1988	56.070
1989	57.041
1990	67.171
1991	50.650
1992	53.414
1993	55.309
1994	46.044
1995	45.654
1996	50.945
1997	52.287
1998	52.297
1999	53.011
2000	59.418
2001	59.413
2002	61.516
2003	73.482
2004	91.914
2005	107.047
2006	123.084
2007	142.483
2008	180.384
2009	150.317
2010	177.785
2011	218.332
2012	227.144
2013	229.701
2014	238.943
2015	187.494
2016	180.764
2017	190.004
2018	194.507
2019	193.361
2020	164.774
2021	185.884
2022	225.631
2023	244.746
2024	266.780
2025	277.339
2026	287.038
2027	294.125
2028	300.405
2029	306.032