Year	current US$
1995	2255803199.89804
1996	2435630986.75662
1997	2518457322.2105
1998	2685301515.92222
1999	2708912021.6308
2000	2645032486.74148
2001	2713794989.32539
2002	2877381176.96773
2003	2883769896.91659
2004	3236159917.43825
2005	3594424547.16736
2006	3974968352.63327
2007	4728074099.40318
2008	5801241357.00364
2009	5929268289.79028
2010	6734334967.60753
2011	6488862211.38182
2012	6294592813.19992
2013	6385648333.84436
2014	7203946518.50176
2015	7898493801.44697
2016	6707529861.92974