Year	constant 2011 international $
1990	3965.12350408363
1991	3891.78304463097
1992	3869.2505212549
1993	3878.97459408363
1994	4000.99836313824
1995	4102.46701217971
1996	4275.48851673916
1997	4468.35625999762
1998	4694.8574363425
1999	4717.96528000203
2000	4972.3955008661
2001	5042.33559020837
2002	5142.84318302397
2003	5269.18763799213
2004	5493.16482589921
2005	5674.08867882087
2006	5822.18618819929
2007	6057.88195584745
2008	6222.19896140067
2009	6407.20833686938
2010	6737.19974634953
2011	6815.58491093666
2012	7178.8737437091
2013	7637.12698174177
2014	7946.94268056638
2015	8290.48345540617
2016	8701.09500505546
2017	9132.96412739866
2018	9539.6978805665