Year	US Dollars
1976	-809638554.21687
1977	-1043729122.38081
1978	-1206806282.72251
1979	-1701631701.6317
1980	-1756294058.40886
1981	-2407082324.45521
1982	-2512056737.58865
1983	-2240705039.9339
1984	-2009882964.88947
1985	-1827673593.51242
1986	-1615428571.42857
1987	-1664697193.50074
1988	-1332888057.70772
1989	-774451792.55134
1990	-1238812716.58882
1991	-976648553.38523
1992	-1655928214.18064
1993	-1671428777.60139
1994	-1410131673.1072
1995	-1422231735.15982
1996	-1752750211.56559
1997	-1611613399.15374
1998	-1539901410.43724
1999	-1454664880.11283
2000	-2256840620.59238
2001	-2245416078.98449
2002	-1831452750.35261
2003	-2137235543.01834
2004	-3408321579.6897
2005	-5145557122.70804
2006	-5029760225.66996
2007	-6312834978.84344
2008	-6528533183.03509
2009	-5397464788.7324
2010	-5489577464.78873
2011	-7557323943.66197
2012	-8668028169.01409
2013	-9944507042.25352
2014	-9460140845.07042
2015	-8591971830.98592
2016	-8129718309.85916
2017	-8594788732.39437