Year current US$ 1960 172.599319458008 1961 167.165298461914 1962 191.220199584961 1963 208.087371826172 1964 213.755981445313 1965 219.482788085938 1966 208.522933959961 1967 214.980865478516 1968 224.749465942383 1969 244.286651611328 1970 257.729644775391 1971 276.508117675781 1972 313.998260498047 1973 376.779327392578 1974 452.060333251953 1975 516.602722167969 1976 537.80859375 1977 604.343505859375 1978 705.193237304688 1979 825.642761230469 1980 1097.66479492188 1981 874.786926269531 1982 847.325866699219 1983 758.467590332031 1984 675.016479492188 1985 666.7158203125 1986 846.905883789063 1987 928.498107910156 1988 1076.0927734375 1989 1081.96533203125 1990 1219.42443847656 1991 1282.57958984375 1992 1317.32995605469 1993 1217.42907714844 1994 1348.5390625 1995 1455.95031738281 1996 1585.72277832031 1997 1416.900390625 1998 1658.47180175781 1999 1627.13513183594 2000 1492.37707519531 2001 1500.36340332031 2002 1590.4873046875 2003 1936.09020996094 2004 2177.798828125 2005 2237.576171875 2006 2433.21264648438 2007 2751.42358398438 2008 3180.17065429688 2009 3118.1416015625 2010 3067.85180664063 2011 3302.453125 2012 3164.00463867188 2013 3377.6435546875 2014 3430.53442382813 2015 3139.22827148438 2016 3132.9521484375 2017 3288.50268554688 2018 3492.67260742188 2019 3498.58276367188 2020 3258.26904296875 2021 3767.52490234375 2022 3441.99145507813 2023 3672.1123046875