Year current US$ 1962 72.46853492672943 1963 78.64056166647487 1964 86.95871647823029 1965 98.35809852775874 1966 106.29395562401825 1967 100.4063719158177 1968 97.49372304342978 1969 109.31716436765635 1970 122.24555278598413 1971 125.63955330365394 1972 132.63100688928935 1973 160.12448854347 1974 187.61301825326478 1975 218.5405072724957 1976 214.21330714359365 1977 227.37848702509288 1978 241.27223902706 1979 266.3946662821738 1980 294.62185076703776 1981 311.8008897103607 1982 311.4267217275831 1983 307.2576172347547 1984 324.9242369452941 1985 347.1236345514358 1986 368.6617145660265 1987 385.4199307148469 1988 405.2991394900253 1989 407.5498265842918 1990 423.01147229237813 1991 453.01864420628846 1992 503.12627628030333 1993 546.4527169200289 1994 612.9069591582062 1995 705.2729566680987 1996 820.6661341409427 1997 888.5295236872662 1998 832.6509522055445 1999 855.1389178515155 2000 911.0297795556183 2001 981.6908396789586 2002 1062.0292169725503 2003 1206.8486836654092 2004 1419.3111269543401 2005 1634.5348042747733 2006 1891.202398591715 2007 2269.0748522081267 2008 2764.4904121694426 2009 3211.7008472186 2010 3755.08856728927 2011 4340.8168677390295 2012 5073.401197140687 2013 5699.180696765499 2014 6196.420942504291 2015 6446.2661713624775 2016 6652.554954300456 2017 6991.588542936588 2018 7672.150162127362 2019 8259.198545325982 2020 8332.187363459076 2021 9340.143670432417 2022 10068.266271347187 2023 10446.11547290577