Year constant 2021 international $ 1990 3664.7067893157664 1991 3640.6155931010817 1992 3663.249359379292 1993 3566.2221348452804 1994 3516.9120036405516 1995 3510.8587394298142 1996 3575.6155450044707 1997 3548.707565619835 1998 3553.168125473362 1999 3541.985075839033 2000 3579.494349563364 2001 3632.4892292029044 2002 3762.9737638781467 2003 3857.3180630489387 2004 4050.0188537389 2005 4204.6001175164665 2006 4348.648198919253 2007 4475.56849821565 2008 4536.382843682413 2009 4676.205510485074 2010 4808.232438176312 2011 4898.557715028715 2012 4996.451640496507 2013 5152.391331619041 2014 5320.89356910729 2015 5416.3051434124945 2016 5451.053858000289 2017 5493.379431056458 2018 5607.346550614339 2019 5647.972865952831 2020 5458.064331072029 2021 5632.059957621709 2022 5749.033440900256 2023 5756.892843551352