Year constant 2010 US$ 1960 16354.5400310888 1961 16188.541846777 1962 17051.7694330584 1963 17433.1546516884 1964 18624.8969887379 1965 19958.8087612925 1966 20240.0025076957 1967 21068.5824883823 1968 22188.7298327292 1969 23343.461730434 1970 24519.6092010347 1971 25275.7592323319 1972 25905.6926433385 1973 27090.994440044 1974 27803.8303848698 1975 27557.6502247987 1976 28560.6231499941 1977 29106.8839465523 1978 29708.3290865455 1979 30098.2227849731 1980 30261.6946914061 1981 29819.2829542194 1982 29314.5646739939 1983 29808.110171326 1984 30599.0397162606 1985 31242.5175872223 1986 31935.5177034559 1987 32346.3729377007 1988 33243.998844792 1989 34505.7978994239 1990 35702.5547419382 1991 36286.3110382525 1992 36627.4078098361 1993 36830.4151003253 1994 37693.0453376081 1995 38676.0699367992 1996 39844.9781145726 1997 41356.4502182195 1998 43019.1875067057 1999 44885.0907344641 2000 46435.2145001787 2001 47158.423541859 2002 46960.184724991 2003 46811.8893066063 2004 47575.4792552091 2005 48437.8795675943 2006 50033.8834282096 2007 51808.7651363365 2008 52727.5192919213 2009 50533.5068799514 2010 50950.0343435181 2011 51499.5957853551 2012 50780.7029672362 2013 50565.3020696131 2014 51100.839820986 2015 51871.5764965267 2016 52727.1024749442 2017 53942.0850769147 2018 55022.9181935359