Year US Dollars adjusted for inflation) 1991 78911.688 1992 79572.477 1993 82465.266 1994 83055.992 1995 83284.562 1996 85600.172 1997 88235.242 1998 90458.5 1999 93294.852 2000 94543.133 2001 95270.648 2002 97144.258 2003 97985.555 2004 100166.297 2005 99836.398 2006 100051.062 2007 100598.375 2008 101609.844 2009 102982.984 2010 102705.039 2011 103284.773 2012 106005.812 2013 107983.5 2014 110096.664 2015 110729.195 2016 112202.914 2017 112906.195 2018 114266.25 2019 115874.797 2020 117686.43 2021 119723.812 2022 121459.391