Year	current US$
2001	4806500
2002	3966800
2003	5244900
2004	6232100
2005	6644500
2006	7020500
2007	6950000
2008	4907200
2009	4928100
2010	4198400
2011	4686400
2012	3294000
2013	4176999.9999999995
2014	4986000
2015	4664000
2016	4552000