Year	constant 2021 PPP $
1991	15008.609168616455
1992	15653.768737441644
1993	15774.244432014853
1994	16299.863106554361
1995	16665.1450950712
1996	17077.63310870028
1997	16516.888652757916
1998	16394.560168517983
1999	17083.392590108142
2000	16365.778944413076
2001	16235.171892304905
2002	16325.056600901627
2003	16348.175052879946
2004	16816.76441188202
2005	16941.842300099437
2006	16876.60205586634
2007	16423.3475278411
2008	16359.860305007162
2009	15827.752119145194
2010	16040.1459977014
2011	16244.001010532776
2012	16336.687437772498
2013	16888.016185246852
2014	17546.887220767105
2015	18030.885851143863
2016	18511.344528631278
2017	19137.336394901777
2018	19458.513715872898
2019	19232.710882610892
2020	16783.46692333326
2021	15862.3101219638
2022	17253.63341014473
2023	17907.873544598413