Year	constant 2010 US$
1966	20931964731.8994
1967	22057382617.0147
1968	22466256880.8088
1969	25114012753.6406
1970	26904690993.6301
1971	27116103537.0261
1972	29764539057.5339
1973	31352177913.7014
1974	29106475287.0472
1975	26313127047.5589
1976	30702648880.0381
1977	30520574494.4724
1978	31147344229.94
1979	31331907913.7458
1980	28417650902.5929
1981	23659179509.5193
1982	25622524592.9331
1983	26751776958.8777
1984	29520232215.9644
1985	33615305628.0366
1986	39753915088.2589
1987	40999808857.4566
1988	38671070353.7915
1989	39471913159.0528
1990	39376252983.824
1991	38460546845.4812
1992	38263181056.4404
1993	37251814742.8688
1994	39807435000.4223
1995	44013282184.1814
1996	46353755950.9786
1997	51085378484.4619
1998	54480603477.0162
1999	54338180056.2759
2000	58775709783.3866
2001	58501175748.9009
2002	57159621804.4745
2003	58096131363.8243
2004	60139311797.9401
2005	63713232842.7341
2006	72421864928.8994
2007	72922036068.1534
2008	71101470019.5143
2009	61881464952.0143
2010	58325146801.9185
2011	58551850748.7898
2012	60737632410.6631
2013	62397460915.795
2014	64338757929.0817
2015	67889386254.6285
2016	73025875366.1713
2017	76399763516.6672
2018	81358089997.0217