Year constant 2021 international $ 1990 1645.5789442267885 1991 1773.6394114609675 1992 2001.2542743278482 1993 2253.0520199537204 1994 2518.1548882905877 1995 2763.799761684591 1996 3006.362707886319 1997 3250.6145732523073 1998 3472.17856130428 1999 3705.9772067603444 2000 3989.0618955585073 2001 4290.302080929212 2002 4650.8968213911085 2003 5085.977830967676 2004 5567.190612478013 2005 6165.183440175244 2006 6910.757858547735 2007 7853.0963953811515 2008 8566.964854352173 2009 9325.650779255326 2010 10267.805668444682 2011 11187.166099521133 2012 11985.317124913145 2013 12830.369970508506 2014 13696.517494849211 2015 14575.934789762397 2016 15485.2130054608 2017 16461.069929896028 2018 17490.166730180383 2019 18465.29894524501 2020 18833.784703311616 2021 20406.729658460514 2022 21019.45723093052 2023 22135.432455880997