Year	constant 2011 international $
1990	8611.22583412197
1991	9140.5800882548
1992	10080.9113627352
1993	10637.577952639
1994	10889.7863072122
1995	11736.196595022
1996	12420.8763014664
1997	13181.5431569772
1998	13675.2590223672
1999	13378.5474362132
2000	13844.3005248649
2001	14168.4086817255
2002	14382.9464124602
2003	14514.021679047
2004	15033.3113260797
2005	15610.7267367965
2006	15641.5197074921
2007	16409.9489725182
2008	17598.2981932169
2009	17298.8590952119
2010	17989.209549763
2011	19112.0363663773
2012	20247.1384242747
2013	20960.0222967484
2014	21299.8293608987
2015	21653.4616378077
2016	21776.1612553041
2017	21414.6966856491
2018	21972.2787234712