Year	constant 2011 international $
1993	4975.26992468743
1994	3940.109511118
1995	3430.11620061086
1996	3414.63511504265
1997	3606.20732137225
1998	3928.18570372467
1999	4162.34134174551
2000	4426.09825902248
2001	4815.57750498242
2002	5209.41496037473
2003	5689.13004388338
2004	6027.99389587938
2005	7183.79753059567
2006	9329.46360733666
2007	11155.0443403757
2008	12858.1734986207
2009	14628.1930716407
2010	15424.9991640874
2011	14676.4197591672
2012	15056.4288294509