Year	constant 2010 US$
1976	103357141179.921
1977	107766522755.45
1978	108217892040.287
1979	115411415532.745
1980	117385824865.687
1981	118360448426.921
1982	123124013285.571
1983	126901731277.703
1984	128773898353.682
1985	131177201885.767
1986	134727322965.229
1987	136965362297.253
1988	140930414301.257
1989	147231529867.24
1990	153154052742.487
1991	158107589336.757
1992	162864279637.824
1993	164476789193.436
1994	166798560361.338
1995	172179232054.187
1996	175737854614.233
1997	179763257329.647
1998	187622696670.79
1999	193733286494.404
2000	201209914190.705
2001	203583044419.943
2002	209170155477.215
2003	210569860219.581
2004	216176930353.41
2005	221688496239.696
2006	230193208420.179
2007	237423281259.701
2008	243059343044.877
2009	240826469365.559
2010	244126286142.605
2011	250659950114.53
2012	251373311615.168
2013	251360146836.072
2014	253591100099.929
2015	256499443496.19
2016	260267735691.908
2017	264833967134.042
2018	270690479369.964