Year US Dollars adjusted for inflation) 1991 74948.945 1992 77212.797 1993 78241.914 1994 79435.219 1995 80111.148 1996 81815.219 1997 83586.266 1998 85633.367 1999 88105.312 2000 90277.562 2001 91240.633 2002 93382.227 2003 95807.641 2004 98305.023 2005 99916.383 2006 100897.719 2007 101858.914 2008 101663.156 2009 102534.891 2010 105698.672 2011 106474.188 2012 106938.031 2013 107540.734 2014 108199.719 2015 109323.094 2016 109329.891 2017 110910.242 2018 113475.906 2019 115909.758 2020 117254.703 2021 118865.516 2022 120709.898