Year current USD 1960 15952380.952381 1961 18571428.5714286 1962 14285714.2857143 1963 15238095.2380952 1964 17478991.596638698 1965 12761904.7619048 1966 13714285.7142857 1967 15428571.428571401 1968 17523809.5238095 1969 16952380.952381 1970 22476190.4761905 1971 24860541.9215669 1972 31650677.1358443 1973 38188218.1045361 1974 46505447.7810258 1975 75323106.2950727 1976 83960118.9435018 1977 121692504.95395699 1978 148496651.616763 1979 160900649.99926198 1980 194096119.559259 1981 228835732.395849 1982 328600426.28329396 1983 383489474.296776 1984 249474468.77256802 1985 215938722.294654 1986 206793454.647122 1987 194409783.482288 1988 232920340.777147 1989 234062029.597997 1990 247855881.53923398 1991 260431030.66012996 1992 289677115.168701 1993 276167134.915416 1994 297068854.727893 1995 342902458.366376 1996 397469509.188336 1997 358166577.75045 1998 365849374.736546 1999 357013395.37863696 2000 332389762.745499 2001 335647906.805402 2002 345424236.66941 2003 407385561.057386 2004 444651416.734245 2005 468464579.97734 2006 497212663.971991 2007 490650558.781295 2008 578911487.330985 2009 564775933.702148 2010 571189045.689535 2011 715239597.096137 2012 681225950.6111189 2013 759358881.2428449 2014 908359962.890424 2015 979306829.765545 2016 987734705.2157999 2017 858949581.256569 2018 844227367.1285139 2019 1000922131.14754 2020 1157372367.01178 2021 1250454380.22537 2022 1156186915.6935399