Year US Dollars adjusted for inflation) 1992 70000000 1993 10000000 1995 4000000 1996 15000000 1998 15000000 1999 5000000 2000 6000000 2001 16000000 2002 13000000 2003 1000000 2004 47000000 2005 10000000 2006 53000000 2007 4000000 2008 27000000 2009 27000000 2010 8000000 2011 1000000 2012 1000000 2013 73000000 2014 2000000 2015 13000000 2016 28000000 2017 7000000 2018 8000000 2019 39000000 2020 97000000 2021 130000000 2022 98000000