Year current US$ 1963 70000.0002980232 1964 119999.997317791 1965 -9999.99977648258 1966 289999.99165535 1967 360000.01430511504 1968 1389999.98569489 1969 1399999.97615814 1970 740000.009536743 1971 1210000.03814697 1972 920000.016689301 1973 3680000.0667572 1974 5920000.07629395 1975 13149999.6185303 1976 13920000.076293899 1977 13579999.923706101 1978 16709999.0844727 1979 27729999.5422363 1980 31270000.4577637 1981 32659999.847412102 1982 25860000.6103516 1983 14890000.3433228 1984 11500000 1985 11869999.8855591 1986 22930000.3051758 1987 36250000 1988 43169998.1689453 1989 33340000.152587898 1990 45180000.3051758 1991 44959999.0844727 1992 47599998.4741211 1993 36590000.1525879 1994 37369998.9318848 1995 30899999.6185303 1996 41009998.3215332 1997 31440000.5340576 1998 42110000.6103516 1999 36540000.9155273 2000 22239999.7711182 2001 23600000.3814697 2002 19350000.3814697 2003 28829999.9237061 2004 38500000 2005 29700000.762939498 2006 29469999.3133545 2007 39900001.5258789 2008 44919998.1689453 2009 47500000 2010 52509998.3215332 2011 43779998.779296905 2012 51400001.5258789 2013 44400001.5258789 2014 49849998.4741211 2015 47389999.3896484 2016 43599998.4741211 2017 41009998.3215332 2018 54389999.3896484 2019 77730003.3569336 2020 93440002.44140631 2021 69940002.44140631 2022 66269996.643066406