Year	constant 2015 US$
2000	3376017516.543808
2001	4017931235.8682547
2002	4112232078.392672
2003	4631711573.691687
2004	5128297296.01667
2005	5524052534.693167
2006	5808599848.431072
2007	5884387648.175181
2008	6819876195.47704
2009	7634640265.469597
2010	8720209507.429033
2011	9112300148.076593
2012	10519460167.638756
2013	11536542541.02992
2014	11907999202.018368
2015	12455275068.777353
2016	12912877569.00936