Year	constant 2011 PPP $
1991	27275.2092379051
1992	27288.7439020443
1993	27569.873495063
1994	28209.3966939865
1995	28122.553832531
1996	28765.2876240193
1997	29257.1486263195
1998	29356.8988613485
1999	29039.5919314976
2000	29481.5733455491
2001	28914.9790095703
2002	28405.6181031506
2003	28322.2918427179
2004	29026.4341647323
2005	29451.9834891206
2006	30107.3000491466
2007	31067.1223915085
2008	31522.5536586163
2009	30548.3632634133
2010	31778.4670422259
2011	32593.9541796598
2012	32645.8476342986
2013	33103.4475667865
2014	33013.2780683723
2015	32686.8066335001
2016	32438.9166889742
2017	32411.1176004418
2018	32636.0143442363
2019	33137.8995673408