Year constant 2021 international $ 1997 2055.4451395938104 1998 1558.6023699615905 1999 1785.3012659508597 2000 1755.736868971748 2001 1805.7652554639617 2002 1845.955291725141 2003 1803.881154967706 2004 1780.235933610257 2005 1858.5109114816835 2006 1861.8233476140747 2007 1862.1620643865272 2008 1891.7225454124311 2009 1895.5749948894343 2010 1967.7776961636712 2011 2045.5896690249508 2012 1930.7357573588356 2013 1984.3176477351922 2014 2021.9440390426055 2015 2076.036370750847 2016 2115.0502879414307 2017 2154.5411256430334 2018 2089.2371076445806 2019 2245.6080623063635 2020 2225.272213363876 2021 2300.4522964192147 2022 2357.1156221450015 2023 2403.059236733529