Year	constant 2021 PPP $
1991	20946.76976136953
1992	11694.09978271697
1993	8133.111736146934
1994	7563.159654112995
1995	8026.504800516755
1996	9780.592447022185
1997	11271.898420688747
1998	12350.145444693419
1999	12675.894582466959
2000	13018.246050592878
2001	13370.97734729023
2002	14628.561555089847
2003	15769.114768144973
2004	17192.134847229387
2005	19283.002677711127
2006	21623.324810412963
2007	23819.72471581171
2008	25665.428160125448
2009	25363.7889571658
2010	26587.348524453217
2011	28398.993663003945
2012	29904.426692703717
2013	31656.511075040853
2014	31974.707417660815
2015	32264.73819031538
2016	33731.64748194818
2017	35676.65016870223
2018	38792.28282169834
2019	41218.88945540049
2020	38477.338799653466
2021	42408.908829252534
2022	47905.8732634289
2023	51152.531961314366