Year	constant 2015 US$
1999	16751000
2000	13629000
2001	19150000
2002	13936000
2003	24213000
2004	37546000
2005	71158000
2006	64050000
2007	64305000
2008	75024000
2009	62201000
2010	63623000
2011	69581000
2012	68853000
2013	71608000
2014	69418000
2015	84910000
2016	106589000