Year	constant 2011 PPP $
1991	28703.46875
1992	19764.693359375
1993	19145.35546875
1994	20090.9609375
1995	21223.2265625
1996	22402.63671875
1997	22832.564453125
1998	24714.55859375
1999	25782.78125
2000	28093.857421875
2001	29689.427734375
2002	31092.73828125
2003	33649.76171875
2004	36289.87890625
2005	39631.28125
2006	42035.30859375
2007	45265.10546875
2008	43969.375
2009	43584.94921875
2010	44283.76953125
2011	46162.34375
2012	47135.2265625
2013	47555.84765625
2014	48678.453125
2015	49575.22265625
2016	50763.640625
2017	52725.4453125
2018	55844.1875
2019	59081.03125