Year	constant 2010 US$
1980	2256863839.63602
1981	2369707098.18196
1982	2206197321.6917
1983	1859824297.21094
1984	1738935720.12688
1985	1756325020.30487
1986	1715929614.62877
1987	1968171275.23469
1988	2129561224.92786
1989	2267982801.47823
1990	2290662466.94973
1991	2402904908.10509
1992	2277201008.60038
1993	2476846450.65243
1994	2629392017.40491
1995	2688219669.1426
1996	3409880893.02027
1997	3779581258.34435
1998	4227816690.59955
1999	4558557692.2145
2000	4635073219.14204
2001	5224699298.9958
2002	5684162363.79798
2003	6053667401.42283
2004	6526530628.5153
2005	7095687688.53239
2006	7794687818.33219
2007	8373526089.74505
2008	8949306946.82385
2009	9517764262.46706
2010	10154238250.1818
2011	10876976988.9172
2012	11659922005.0362
2013	12492636711.0012
2014	13422597262.8268
2015	14307681441.3748
2016	14846118924.9258
2017	15400912189.5206
2018	15903731315.4385