Year	U.S. dollars (Billions)
1984	6.980
1985	9.206
1986	16.282
1987	18.045
1988	10.266
1989	11.503
1990	10.914
1991	12.468
1992	8.550
1993	7.042
1994	6.498
1995	5.474
1996	10.923
1997	6.776
1998	3.129
1999	7.577
2000	8.219
2001	17.084
2002	24.346
2003	28.261
2004	17.263
2005	14.948
2006	23.157
2007	32.044
2008	24.794
2009	40.662
2010	36.726
2011	37.914
2012	42.925
2013	49.937
2014	60.607
2015	72.769
2016	71.259
2017	83.073
2018	70.883
2019	65.710
2020	97.254
2021	117.976
2022	100.829
2023	98.926
2024	111.590
2025	118.442
2026	135.136
2027	119.815
2028	130.326
2029	140.214