Year constant 2021 international $ 1990 3988.7669027954325 1991 3901.547994188022 1992 3761.2534130627214 1993 3589.916308854731 1994 3613.4138571784056 1995 3725.1682371992324 1996 3836.531462616609 1997 3771.857983577282 1998 3806.4249537655546 1999 3771.7941490881963 2000 3696.707593825777 2001 3718.876809916609 2002 3634.1383057174608 2003 3625.1331895462363 2004 3706.186085201377 2005 3839.0326728947125 2006 3958.752986565806 2007 4099.627363459823 2008 4001.998540159027 2009 3499.854618325147 2010 3712.2442732223585 2011 3892.197178021402 2012 3931.847811376083 2013 3954.7413101371762 2014 4076.23509795733 2015 4242.15396902395 2016 4730.486589674582 2017 4779.363118834545 2018 4967.607335926299 2019 5114.739117230693 2020 4992.661089387125 2021 5270.714550527073 2022 5431.031162044458