Year	constant 2010 US$
1970	12745.3555351133
1971	13034.2223737599
1972	13675.3571634971
1973	14093.1699743611
1974	14452.1518751535
1975	15020.4746294856
1976	15001.8644312272
1977	16015.3473110223
1978	16924.4895278214
1979	17213.7143061925
1980	17540.7530571875
1981	17913.0201609759
1982	18149.6549916929
1983	17977.413461576
1984	18644.3180369818
1985	19188.8690231585
1986	19097.9974884065
1987	19986.4823140317
1988	21119.3916908535
1989	22435.9829739196
1990	24314.998060102
1991	24642.1074970429
1992	25292.8088142484
1993	25844.3414543309
1994	27224.3701321669
1995	29694.6470072588
1996	31644.8860866929
1997	34745.1763296793
1998	37373.1284440715
1999	40835.6921954167
2000	44101.107408966
2001	45695.5883966
2002	47591.8934393235
2003	48236.9627254325
2004	50546.4910719064
2005	52276.2443410687
2006	53466.0662125799
2007	54708.070596146
2008	51202.3593264172
2009	48110.5514879089
2010	48715.1768553933
2011	48669.7857189072
2012	48573.3772536945
2013	48971.3696798502
2014	52774.5011758522
2015	65432.7344596075
2016	67077.7436102692
2017	71755.9670082922
2018	76880.8077133538