Year constant 2010 US$ 1960 19123.3124282274 1961 19232.7605350183 1962 19049.2790717796 1963 19809.1140655779 1964 20788.5015655012 1965 21648.3330547072 1966 21648.5844291221 1967 22730.3799126664 1968 23399.6548183488 1969 24533.310763311 1970 25780.6320883012 1971 25941.0171998371 1972 26500.9693323216 1973 26770.8608667098 1974 27230.6418164758 1975 27283.3222126908 1976 27595.7310856007 1977 28265.4442858146 1978 28182.7277341419 1979 28985.941499385 1980 29446.0347671633 1981 30011.9077732703 1982 30505.3527420274 1983 29532.0368514836 1984 30332.3126580355 1985 31353.4989841268 1986 32056.470942854 1987 32358.478618084 1988 33618.6914899818 1989 34118.0977317674 1990 34615.7517221888 1991 34020.5348474783 1992 33965.2607223385 1993 35157.4714075761 1994 36194.773626002 1995 36922.4513002687 1996 37810.3441987491 1997 38931.3150852188 1998 40374.5340000674 1999 41964.5012727534 2000 43186.4579473268 2001 43455.4896968432 2002 44682.6207760869 2003 45406.4416942516 2004 46665.2481983243 2005 47108.7242339443 2006 47598.3563339029 2007 48804.3753122027 2008 49748.9970752093 2009 49947.8385370735 2010 50001.1878491491 2011 50375.3059885024 2012 51982.1868815262 2013 52776.1370707967 2014 53267.6620500394 2015 54083.1281253785 2016 54591.9176493844 2017 54721.1848955439 2018 55147.8207033385