Year	constant 2011 PPP $
1991	19670.939453125
1992	20596.083984375
1993	21329.9375
1994	21834.828125
1995	22394.689453125
1996	23421.720703125
1997	24405.703125
1998	25508.201171875
1999	25872.40234375
2000	27923.357421875
2001	28284.494140625
2002	28396.978515625
2003	29370.689453125
2004	30939.818359375
2005	31183.884765625
2006	33489.9609375
2007	35296.1796875
2008	36221.703125
2009	37050.25390625
2010	37985.67578125
2011	39605.875
2012	40513.1640625
2013	40786.3984375
2014	41868.72265625
2015	42712.10546875
2016	44196.203125
2017	45632.578125
2018	47244.46484375
2019	48821.19921875