Year	U.S. dollars (Billions)
1980	20.190
1981	24.398
1982	24.259
1983	18.863
1984	19.442
1985	16.823
1986	25.241
1987	41.681
1988	32.978
1989	40.699
1990	28.326
1991	33.988
1992	35.377
1993	34.330
1994	43.225
1995	51.380
1996	53.412
1997	56.281
1998	53.918
1999	48.719
2000	50.414
2001	51.034
2002	53.954
2003	58.537
2004	66.126
2005	74.232
2006	87.459
2007	102.187
2008	121.293
2009	121.821
2010	148.991
2011	170.929
2012	193.072
2013	202.581
2014	202.902
2015	192.186
2016	195.633
2017	215.740
2018	226.858
2019	232.419
2020	206.199
2021	226.231
2022	245.008
2023	267.585
2024	282.458
2025	294.781
2026	307.194
2027	319.956
2028	333.131
2029	346.778