Year current US$ 1970 571515781.5157815 1971 658215791.4909927 1972 764343036.9787569 1973 756282076.0177504 1974 546551279.6906646 1975 918789198.6062719 1976 1137489385.7911124 1977 991548289.6002198 1978 986356085.7746904 1979 1146755319.1489363 1980 1821526136.9153585 1981 2104308530.8657622 1982 2375200089.4254413 1983 2352342174.8066945 1984 2167893119.344374 1985 2050986091.446656 1986 2855151547.2657905 1987 3257768024.344569 1988 3704433113.3773246 1989 3800542471.2579527 1990 4520690373.843949 1991 4377150462.669539 1992 5362114431.193891 1993 4526474008.605652 1994 5685276796.23086 1995 7091532828.282828 1996 7748995715.725807 1997 8587575214.8997135 1998 9428526410.227654 1999 10624344926.68844 2000 10872519398.89571 2001 10974728073.485447 2002 12459431622.114532 2003 16436254815.130554 2004 20483213813.356426 2005 23989988044.35174 2006 28078169230.125843 2007 31338392408.015785 2008 28434621417.224995 2009 21270557464.011703 2010 20148090768.300037 2011 20680675899.854126 2012 19546398410.825394 2013 21140017406.420845 2014 23310363649.857174 2015 20814126755.23202 2016 22081651153.469704 2017 23462097564.89651 2018 25304503596.199196 2019 25967402375.78035 2020 22583389530.929245 2021 29193964646.984028 2022 28114484195.70828 2023 29938801542.816216