Year current international $ 1990 2898.8825487894646 1991 2973.5771629153573 1992 3040.0306876593418 1993 3216.0259570798717 1994 3400.1949325867454 1995 3631.5978277787644 1996 3853.265755852385 1997 4090.8402970182956 1998 4204.204163571945 1999 4413.859918604554 2000 4797.683731304648 2001 5122.318814065839 2002 5497.920971682131 2003 5976.56136019695 2004 6597.190178513978 2005 7306.300864843555 2006 8317.510920920367 2007 9352.84640189834 2008 10293.006785745618 2009 10675.72738319609 2010 11611.551001539607 2011 12682.383871799217 2012 13561.354834111877 2013 14323.322677470826 2014 14858.23153046972 2015 14941.491299066693 2016 15460.828334860002 2017 16366.972843034115 2018 17695.83965804602 2019 18972.388619014273 2020 19236.650363281115 2021 21905.72133963371 2022 24146.04275439239 2023 26054.031436021214