Year US Dollars adjusted for inflation) 1991 69341.164 1992 71636.609 1993 74504.102 1994 78254.219 1995 79936.5 1996 81767.086 1997 85363.148 1998 87838.555 1999 90025.195 2000 92837.305 2001 91940.5 2002 93561.867 2003 96171.125 2004 100688.281 2005 102782.008 2006 106855.195 2007 107714.844 2008 105687.344 2009 102214.852 2010 107975.891 2011 108575.18 2012 107660.859 2013 107769.656 2014 109789.203 2015 113059.258 2016 115315.883 2017 117158.359 2018 119122.789 2019 120778.234 2020 122698.375 2021 124491.305 2022 126258.273