Year	constant 2011 PPP $
1991	33837.9375
1992	31673.431640625
1993	29781.54296875
1994	29550.9609375
1995	29083.46875
1996	29289.130859375
1997	29683.830078125
1998	29871.888671875
1999	30077.158203125
2000	30923.634765625
2001	28867.296875
2002	29563.984375
2003	32000.33984375
2004	33446.07421875
2005	34761.86328125
2006	35569.7890625
2007	36646.05078125
2008	37283.46875
2009	35813.04296875
2010	36577.7890625
2011	36988.9375
2012	36710.0390625
2013	36196.61328125
2014	36830.02734375
2015	37384.08984375
2016	37605.828125
2017	36765.51953125
2018	37710.5
2019	38987.2421875