Year	constant 2010 US$
1997	1131607708.0029
1998	1068911321.84467
1999	1037506382.22416
2000	1011615986.22301
2001	1020378110.97755
2002	1041088063.44832
2003	1003332288.60747
2004	1034147341.68025
2005	1015755958.42246
2006	975406081.80192
2007	944165262.786317
2008	962925450.298191
2009	968602766.374891
2010	864676418.468626
2011	814542995.709416
2012	902753791.947557
2013	919720448.278581
2014	910799545.608301
2015	953673346.710641
2016	946138193.305117