Year	constant 2011 international $
1990	3002.50141512613
1991	2966.880988003
1992	3017.01165264024
1993	2899.37884644389
1994	2875.52745806295
1995	2894.71891380623
1996	2931.40537169
1997	2917.87470378083
1998	2925.02699173511
1999	2932.77559001442
2000	2909.34283390845
2001	2983.23940377099
2002	3161.98906580351
2003	3289.77797803725
2004	3442.2125750465
2005	3575.29436660652
2006	3780.95273476021
2007	3886.61955595457
2008	3969.13643756724
2009	4074.37527639127
2010	4200.38497994987
2011	4263.0824909177
2012	4366.9227628382
2013	4527.96808018657
2014	4713.12904135752
2015	4827.25770696311
2016	4838.00984502164
2017	4859.024229681