Year	U.S. dollars (Billions)
1980	4.615
1981	3.585
1982	3.662
1983	3.280
1984	3.417
1985	4.516
1986	5.301
1987	2.395
1988	2.105
1989	2.199
1990	3.529
1991	3.855
1992	2.799
1993	2.883
1994	2.958
1995	3.062
1996	4.030
1997	4.874
1998	5.551
1999	6.285
2000	5.931
2001	5.650
2002	5.951
2003	6.584
2004	7.937
2005	8.868
2006	9.510
2007	10.811
2008	12.920
2009	12.264
2010	11.412
2011	14.619
2012	16.688
2013	17.198
2014	17.978
2015	16.209
2016	12.069
2017	13.265
2018	15.017
2019	15.513
2020	14.235
2021	16.168
2022	18.407
2023	21.353
2024	22.975
2025	25.208
2026	26.668
2027	30.841
2028	35.208
2029	38.919