Year	constant 2010 US$
1960	5743773673.33283
1961	5132717042.19282
1962	7454679354.06375
1963	7454679354.06375
1964	6843644533.91513
1965	7454679354.06375
1966	8676757095.58632
1967	8676757095.58632
1968	8065726326.05042
1969	9776634032.08768
1970	9893963819.55855
1971	8911399792.97521
1972	9092264323.28585
1973	10363234673.6754
1974	10387664801.6236
1975	9422218768.12232
1976	12391881319.1621
1977	15777067196.4903
1978	17182373156.6199
1979	16632451280.302
1980	15777067196.4903
1981	16598091023.4178
1982	17253143384.2704
1983	17698724074.2877
1984	17240062034.4558
1985	19921585394.4031
1986	17875570604.5354
1987	17253143384.2704
1988	20482856879.7496
1989	22004799453.271
1990	25968216627.4092
1991	25027090969.096
1992	24769388405.0964
1993	25756002356.8724
1994	29695529464.3183
1995	36385381307.3708
1996	39167696785.6267
1997	43937319883.7772
1998	48604954076.4381
1999	47992396563.0453
2000	49289338916.5561
2001	50640355142.009
2002	52206638632.5193
2003	55336618844.529
2004	59826719523.6325
2005	67536487416.1127
2006	71292328739.2415
2007	77112956639.8029
2008	77683495718.0705
2009	70422336693.7513
2010	80208867995.7171
2011	83536585369.3008
2012	80104642370.9845
2013	77284766433.7049
2014	71890933183.0461
2015	69894253858.4586
2016	73610778836.9358
2017	74874747888.2482
2018	74864380850.7322