Year current US$ 1960 0 1961 0 1966 0 1967 0 1987 0 1988 0 1989 0 1990 0 1991 0 1992 0 1993 0 1994 910000.026226044 1995 550000.011920929 1996 1119999.98800457 1997 139999.995008111 1998 1140000.01177192 1999 2100000.0666827 2000 3719999.86469746 2001 3509999.96438622 2002 2490000.06169081 2003 3880000.01944602 2004 8989999.89777803 2005 17789999.5595217 2006 13830000.160262 2007 35380000.2895296 2008 34129999.2054701 2009 17989999.3129075 2010 17169999.8565018 2011 1760000.01095235 2012 450000.004842877 2013 1220000.0397861 2014 1329999.9702721802 2015 490000.015124679 2016 160000.016912818 2017 12269999.8468161 2018 6309999.77700412 2019 4149999.76567924 2020 4459999.930113549 2021 -3109999.8224526597 2022 37230001.59300863