Year constant 2011 PPP $ 1991 8282.6650390625 1992 7021.5341796875 1993 5971.7978515625 1994 4730.55419921875 1995 4443.0078125 1996 4758.59912109375 1997 5139.1298828125 1998 5196.671875 1999 5228.39697265625 2000 5339.9091796875 2001 5540.73876953125 2002 5726.76806640625 2003 5882.35595703125 2004 6119.673828125 2005 5859.9599609375 2006 5878.6650390625 2007 6313.93603515625 2008 6800.75390625 2009 6973.97216796875 2010 6830.43896484375 2011 7076.171875 2012 7037.10009765625 2013 7878.07080078125 2014 8094.43896484375 2015 8271.7919921875 2016 8628.5966796875 2017 8898.162109375 2018 9166.71484375 2019 9523.134765625