Year	constant 2011 international $
1990	5323.02270723099
1991	5302.99139221077
1992	5293.66806008931
1993	5098.63088215753
1994	4685.89780638059
1995	4737.32599936461
1996	4801.76444757899
1997	4636.17906962458
1998	4671.98983033255
1999	4421.3506774479
2000	4620.9894788906
2001	4661.77363334534
2002	4739.20848260509
2003	4642.37338389821
2004	4662.07786656487
2005	4867.92265817337
2006	5002.51681004748
2007	4757.0003156563
2008	4852.60241152515
2009	5046.58352700935
2010	5323.42872751902
2011	5353.80429630661
2012	5415.11371719297
2013	5465.0384451386
2014	5694.86242077095
2015	5702.1829761714
2016	5403.53600845664
2017	5103.14282137646
2018	5024.08268595301