Year constant 2021 international $ 1990 39863.066038595825 1991 38547.46526571939 1992 38433.09127333627 1993 39023.32582863535 1994 40332.87620873973 1995 40988.39891806284 1996 41247.25330807704 1997 42587.366207601044 1998 43879.56811956516 1999 45761.92989218546 2000 47667.433085632925 2001 48036.626617808186 2002 48943.5412414992 2003 49381.59503554365 2004 50436.29484270397 2005 51564.8455651212 2006 52391.37926194976 2007 52948.89942716981 2008 52899.4754504882 2009 50772.869921753845 2010 51763.67581029687 2011 52869.38785593587 2012 53217.7135831819 2013 53884.8455875649 2014 54880.858201856245 2015 54819.18903538742 2016 54765.30377208679 2017 55756.26248178323 2018 56470.45926739307 2019 56713.0888767094 2020 53274.91093022858 2021 55781.699027291164 2022 56872.605348235265 2023 55817.89742791437