Year	current US$
1984	48571429.95918371
1985	95555562.22222222
1986	64210525.185595535
1987	66241427.16012723
1988	81630154.1789537
1989	86618700.71953551
1990	98057229.90192492
1991	133175703.9083865
1992	192017652.0779801
1993	284956368.6061724
1994	385700002.36877674
1995	409499988.5670258
1996	425300014.0062105
1997	417400000.07936627
1998	466700003.92016554
1999	521789232.3638572
2000	530820000
2001	492970000
2002	505520000
2003	475490000
2004	589520000
2005	792320002.4497561
2006	1318269398.2099195
2007	1419583783.668606
2008	1805714832.0265818
2009	1755689259.1813745
2010	2523507712.8104653
2011	3530068364.4165626
2012	3860716719.1264715
2013	4574379415.610648
2014	5411896459.687825
2015	4898081700.518005
2016	5284450716.02575