Year constant 2021 international $ 1990 1923.209642843185 1991 1735.2709423792946 1992 1720.4123478786366 1993 1706.755699099362 1994 1642.111768960208 1995 1618.6207306848846 1996 1617.6212646701158 1997 1629.1773377569184 1998 1644.3154998051198 1999 1674.7949384359706 2000 1702.764125722506 2001 1754.59702164472 2002 1492.6598710933615 2003 1591.9511428595147 2004 1632.946705890056 2005 1650.3785604880181 2006 1685.4566485750506 2007 1753.907462146846 2008 1819.1205306884067 2009 1687.2507361032808 2010 1644.3743462358484 2011 1622.9368679096274 2012 1602.5533097410769 2013 1592.4159391539038 2014 1614.8721591033943 2015 1603.723461010535 2016 1619.491042442984 2017 1657.9982079011584 2018 1662.867607433414 2019 1692.0702230613927 2020 1547.3372842531232 2021 1612.993728609926 2022 1625.4267721626902 2023 1655.764683153374