Year	constant 2011 PPP $
1991	31911.40234375
1992	25244.439453125
1993	24356.783203125
1994	22107.71484375
1995	23517.060546875
1996	24564.623046875
1997	26095.177734375
1998	28112.48046875
1999	27658.3203125
2000	30141.58203125
2001	33214.078125
2002	34284.1875
2003	36563.40234375
2004	40084.73046875
2005	42939.140625
2006	45941.03125
2007	50303.95703125
2008	52652.4140625
2009	48828.9921875
2010	52355.09375
2011	53779.578125
2012	54954.3828125
2013	56445.796875
2014	57624.40625
2015	58256.59375
2016	58114.65625
2017	59911.0234375
2018	61552.859375
2019	64221.1328125