Year constant 2021 international $ 1990 2689.6897844587415 1991 2663.407776905473 1992 2646.8512926996937 1993 2630.525719626735 1994 2552.497123454104 1995 2499.8117917855097 1996 2481.645434767172 1997 2528.2679229669475 1998 2541.146222800106 1999 2625.734850881272 2000 2691.065833063967 2001 2766.4933343623825 2002 2601.37115422544 2003 2701.9255783638987 2004 2809.94246776074 2005 2664.300957604401 2006 2570.6527956494115 2007 2568.4533161834183 2008 2645.696181501504 2009 2735.5361201867354 2010 2808.694020030047 2011 2501.6454427231024 2012 2552.546682067412 2013 2546.964569349925 2014 2437.529776843115 2015 2464.270709189504 2016 2442.6966744605656 2017 2491.704685320493 2018 2602.3237726549255 2019 2693.764061890245 2020 2641.1525959145138 2021 2710.5524630966993 2022 2774.410254443158 2023 2850.57760406569