Year current US$ 1972 2159999.9926984305 1973 3719999.924302101 1974 4509999.966248874 1975 10209999.892860658 1976 11409999.944269653 1977 10550000.159069896 1978 11010000.329464674 1979 14970000.371336937 1980 12420000.016689297 1981 11390000.015497206 1982 10630000.084638594 1983 12539999.842643736 1984 13220000.147819519 1985 12720000.11801719 1986 12229999.899864186 1987 22109999.65667724 1988 15070000.0524521 1989 14930000.066757202 1990 22679999.956861142 1991 17120000.12397766 1992 24150000.240653746 1993 25920000.419020653 1994 19679999.904707067 1995 28380000.112578265 1996 30460000.345483422 1997 31339999.917894606 1998 27109999.57844615 1999 27650000.318884846 2000 22539999.97302891 2001 22619999.907910816 2002 20759999.971836798 2003 26199999.731034044 2004 32469999.825581923 2005 32169999.687001057 2006 47959999.665617965 2007 52970000.64514583 2008 59649998.731911205 2009 71049999.82006852 2010 77779999.7683613 2011 83579999.17492269 2012 106590000.39473179 2013 102750001.82166693 2014 124340000.86225578 2015 112929999.64579934 2016 107530001.08152622 2017 95910000.95009804 2018 121289999.7234346 2019 100779998.00443652 2020 120859999.74608418 2021 212459998.54803082 2022 87969999.06003478