Year	constant 2011 PPP $
1991	66999.09375
1992	64328.59375
1993	61186.55078125
1994	62185.22265625
1995	61377.69140625
1996	63446.40625
1997	62510.58984375
1998	62829.5078125
1999	65914.0546875
2000	67147.8984375
2001	66638.4453125
2002	67933.25
2003	66376.4453125
2004	64474.43359375
2005	64625.3671875
2006	62686.58984375
2007	62195.7265625
2008	59376.796875
2009	59331.53515625
2010	58793.69921875
2011	58047.0234375
2012	58285.30859375
2013	58417.86328125
2014	55788.8828125
2015	54491.38671875
2016	53341.7578125
2017	53358.58984375
2018	53657.44921875
2019	54089.23828125