Year	constant 2010 US$
1968	2870161595.86265
1969	2884298444.02653
1970	2496064949.47425
1971	2563646095.03279
1972	2602939859.99195
1973	2701980898.04056
1974	2755397329.41505
1975	2714531365.96933
1976	2859169393.25141
1977	2764845199.55989
1978	2769562043.5991
1979	2854452549.21221
1980	2934598095.55066
1981	2993399412.25281
1982	3089212454.94992
1983	3154623026.26068
1984	3237398689.66635
1985	3326727626.74289
1986	3405120093.56641
1987	3474370969.15891
1988	3575944592.72733
1989	3676126650.25804
1990	3772134507.15255
1991	3877882331.03929
1992	3998935640.33053
1993	4074072245.46451
1994	4040678143.53372
1995	4509586143.87372
1996	4604287277.27808
1997	4479034886.8279
1998	4413903226.20562
1999	4515423107.64149
2000	3987126735.06114
2001	3927048049.50533
2002	3784321436.72988
2003	3809433691.53892
2004	3870783883.66734
2005	3889427348.78823
2006	4108705014.76765
2007	4222247330.97556
2008	4339310009.4412
2009	4460004914.97735
2010	4621208405.25335
2011	4786276042.28228
2012	4951550803.02286
2013	5161783747.0176
2014	5406441009.49469
2015	5658211438.68386
2016	5842672415.34319
2017	5936764242.08877
2018	6023231047.29681