Year constant 2010 US$ 1971 1145.48316043809 1972 1170.4562734845 1973 1228.58922646734 1974 1232.31413737579 1975 1240.14506239536 1976 1262.93712400903 1977 1288.09633784463 1978 1296.49735313484 1979 1284.07788945959 1980 1392.02910038182 1981 1443.71232717374 1982 1390.68071032526 1983 1626.58623429977 1984 1825.78701545655 1985 2053.5379046953 1986 1961.18046236536 1987 1856.16433976919 1988 1483.1866640322 1989 1500.79093445275 1990 1684.76126942452 1991 1636.20668302177 1992 1714.33472361085 1993 1871.94729361605 1994 2007.51946131062 1995 2024.07301331824 1996 1828.99816976879 1997 1843.63361832461 1998 1616.86766718802 1999 1549.16132755443 2000 1493.82787739356 2001 1446.96147948217 2002 1691.78982878513 2003 1509.94307987827 2004 1757.98207931388 2005 1824.76689873004 2006 1966.51865641912 2007 2275.93702578016 2008 2302.05601291556 2009 2302.84432432926 2010 2456.32485519204 2011 2553.3025510335 2012 2599.05115097078 2013 2656.39071907706 2014 2702.14100273038 2015 2783.47117677451 2016 2873.29549563204 2017 2932.84770079456