Year constant 2021 international $ 1990 2248.5136570534205 1991 2238.230822881992 1992 2317.7447375356005 1993 2366.770149387723 1994 2457.938326799444 1995 2577.042087219121 1996 2702.965339319742 1997 2748.5576085178627 1998 2842.991042123921 1999 3013.338575999511 2000 3070.279280052073 2001 3148.9776847642233 2002 3202.732044989473 2003 3379.7811128594203 2004 3581.2268398917254 2005 3793.7274253245164 2006 4020.7928147336515 2007 4257.160265940435 2008 4317.747419172806 2009 4558.916329914548 2010 4816.964326777442 2011 4991.747361956582 2012 5163.363253055341 2013 5402.663891162171 2014 5712.372571230661 2015 6068.330884950177 2016 6538.571017789143 2017 6882.813754052068 2018 7241.264553557113 2019 7452.237296781668 2020 7007.344748901917 2021 7563.110476697834 2022 7950.553505874973 2023 8382.703651039981