Year	U.S. dollars (Billions)
1980	80.923
1981	70.121
1982	70.111
1983	71.032
1984	67.007
1985	68.624
1986	97.375
1987	121.771
1988	133.591
1989	133.263
1990	166.866
1991	174.435
1992	195.506
1993	190.383
1994	203.970
1995	241.234
1996	237.343
1997	213.045
1998	218.557
1999	217.475
2000	197.377
2001	197.510
2002	214.243
2003	262.208
2004	301.321
2005	316.267
2006	336.298
2007	389.231
2008	432.005
2009	401.323
2010	392.595
2011	431.609
2012	409.661
2013	430.197
2014	442.699
2015	382.010
2016	395.728
2017	417.114
2018	455.198
2019	444.645
2020	434.701
2021	479.614
2022	471.216
2023	519.710
2024	540.887
2025	561.734
2026	581.023
2027	598.329
2028	615.262
2029	632.535