Year	constant 2010 US$
1998	3491268444.56478
1999	3165155002.03059
2000	3732232299.98646
2001	3926492486.80114
2002	4198862867.19913
2003	4665290374.98308
2004	4773588736.97035
2005	5139298768.10613
2006	5633613104.1018
2007	6514620278.86828
2008	6652294571.5446
2009	6037092188.98064
2010	5928252335.18343
2011	6526668471.63937
2012	6690875863.00257
2013	6512995803.43847
2014	6911939894.4091
2015	7245972654.6636
2016	7678421551.37404
2017	8146879653.44524