Year current US$ 1964 29999.999329447703 1965 59999.9986588955 1966 200000.00298023198 1967 59999.9986588955 1968 9999.99977648258 1970 9999.99977648258 1971 59999.9986588955 1972 70000.0002980232 1973 100000.00149011599 1974 79999.9982118607 1975 109999.999403954 1976 70000.0002980232 1977 59999.9986588955 1978 59999.9986588955 1979 19999.9995529652 1991 53540000.9155273 1992 4079999.92370605 1993 9390000.34332275 1994 13960000.038146999 1995 6699999.80926514 1996 11500000 1997 6309999.94277954 1998 6489999.771118159 1999 10970000.2670288 2000 14000000 2001 12630000.1144409 2002 13739999.7711182 2003 179979995.727539 2004 275100006.10351604 2005 1317520019.53125 2006 203000000 2007 69169998.1689453 2008 639039978.027344 2009 48560001.373291 2010 30979999.5422363 2011 13380000.1144409 2012 10890000.3433228 2013 10960000.038146999 2014 63169998.1689453 2015 84699996.9482422 2016 160429992.67578098 2017 106669998.168945 2018 98629997.253418 2019 98660003.6621094 2020 59509998.3215332 2021 69730003.3569336 2022 23959999.084472697