Year	constant 2011 international $
1990	4109.23024523758
1991	4020.78509443689
1992	4168.5259739027
1993	4209.83088378082
1994	4337.46364030937
1995	4424.8248067835
1996	4513.47670836375
1997	4385.95293095769
1998	4409.89537394367
1999	4609.03644497305
2000	4507.42366983685
2001	4521.37084138289
2002	4576.53914398487
2003	4611.69790996734
2004	4755.03517226323
2005	4790.38049059319
2006	4838.59847826054
2007	4817.0901964776
2008	4836.59484287106
2009	4699.84970733128
2010	4776.62180173828
2011	4906.83948991797
2012	4931.2356903456
2013	5023.78027640469
2014	5175.56070723076
2015	5308.8685898598
2016	5406.69487653958
2017	5558.16195536606
2018	5689.04937363366