Year constant 2021 international $ 1990 25162.092500717874 1991 25523.26419918877 1992 26569.534105647726 1993 26937.706897647844 1994 28198.919130965456 1995 29269.369003010408 1996 30203.82776953503 1997 30575.1782827376 1998 31113.78375049694 1999 31341.682483025575 2000 33171.34544745151 2001 32506.83516496694 2002 31822.288291693087 2003 31688.52442400606 2004 32622.87523772445 2005 33377.8945551828 2006 34623.748695952716 2007 36066.37572851713 2008 36583.215165491594 2009 36034.61112504608 2010 37387.976356072024 2011 38744.48808408163 2012 39020.002375723714 2013 39989.696291054286 2014 40766.84688880404 2015 40960.59913736556 2016 41981.60093582886 2017 42936.442969465694 2018 43831.44051223132 2019 44789.8910385071 2020 43189.53147156763 2021 46126.642313742064 2022 48318.89279749246 2023 48277.625088750974