Year	U.S. dollars (Billions)
1980	-0.855
1981	3.826
1982	5.025
1983	5.089
1984	6.380
1985	4.248
1986	4.318
1987	4.187
1988	7.132
1989	10.039
1990	8.089
1991	7.466
1992	6.847
1993	13.203
1994	17.294
1995	25.773
1996	21.502
1997	25.077
1998	13.031
1999	15.682
2000	7.257
2001	9.814
2002	11.032
2003	29.892
2004	49.750
2005	48.322
2006	66.682
2007	58.437
2008	47.266
2009	47.141
2010	58.805
2011	77.252
2012	85.576
2013	85.536
2014	72.931
2015	39.841
2016	55.761
2017	74.340
2018	85.223
2019	62.986
2020	46.743
2021	124.817
2022	93.655
2023	113.572
2024	104.226
2025	104.105
2026	106.865
2027	111.025
2028	113.996
2029	117.950