Year	constant 2011 PPP $
1991	20830.283203125
1992	19470.3984375
1993	19744.58984375
1994	20667.59765625
1995	21691.376953125
1996	22361.65234375
1997	22656.17578125
1998	23567.728515625
1999	23190.54296875
2000	25602.572265625
2001	26917.95703125
2002	28228.1953125
2003	28762.044921875
2004	29652.775390625
2005	31625.02734375
2006	32337.623046875
2007	33219.765625
2008	34127.35546875
2009	34056.609375
2010	36726.55859375
2011	38777.8359375
2012	39139.17578125
2013	39505.328125
2014	39451.1640625
2015	40162.890625
2016	41903.9453125
2017	41541.96875
2018	42994.00390625
2019	44353.84765625