Year current US$ 1960 11022305.457889225 1961 11630341.734099092 1962 15646737.049163805 1963 15768979.026220173 1964 18826859.635296628 1965 20028552.57215334 1966 17340863.333480097 1967 10469520.242235824 1968 10838523.687065005 1969 11389217.428024298 1970 12335648.708646892 1971 21078343.9155015 1972 22381901.80634443 1973 31082101.907116774 1974 33736638.21093823 1975 45064535.54592374 1976 56329264.16967358 1977 72039358.71181731 1978 83419766.71910936 1979 51370864.734385 1980 63196069.302588224 1981 52952971.55018709 1982 55276175.77015493 1983 34644542.81619577 1984 30745682.227445412 1985 56668368.85461222 1986 99345692.06766975 1987 87416984.5597688 1988 121038163.0651953 1989 114953124.15054129 1990 126788332.61391112 1991 143980877.83096445 1992 151855849.51307198 1993 116406627.6568275 1994 137358714.63162118 1995 173825449.66694936 1996 197967775.46340656 1997 201813050.24859178 1998 212975876.375658 1999 214620301.1302119 2000 162431485.89698252 2001 192935404.28997502 2002 231616784.06342396 2003 308124941.22020817 2004 407881676.169338 2005 523285721.311546 2006 466742172.53412867 2007 566838589.7125618 2008 668258449.3305013 2009 751287068.9242022 2010 776452813.83639 2011 969017530.6739249 2012 1137734491.7026572 2013 1439108656.215539 2014 1238245634.753412 2015 1057120490.1970665 2016 1152596233.8375752 2017 1430285784.3295546 2018 1525827306.472805 2019 1458964875.0978503 2020 1511041068.3108947 2021 1711770018.1329014 2022 1602582169.860313 2023 1669839042.9509115