Year current international $ 1990 2141.2322427144054 1991 2348.9156786757208 1992 2402.4314866032855 1993 2545.3605270783273 1994 2721.9215598662477 1995 2976.6982507790285 1996 3079.209530866578 1997 3156.047058850625 1998 3247.8859128694617 1999 3394.672917456062 2000 3480.783911252247 2001 3670.8737368491998 2002 3886.2823546659642 2003 4030.9455088826744 2004 4015.4788600446773 2005 4121.313717336288 2006 4219.84255069987 2007 4327.66095577047 2008 4607.870560251014 2009 4386.54855959111 2010 4465.570427917779 2011 4858.141602776444 2012 4994.399205479958 2013 5114.91167745964 2014 5332.10032250044 2015 5470.508663838438 2016 5908.485069375861 2017 6231.328414871069 2018 6405.560147297892 2019 6571.528640222994 2020 6671.587709055334 2021 6742.46177359667 2022 7016.366131332027