Year	US Dollars
1960	2660000.08583
1961	3390000.1049
1962	4349999.90463
1963	3519999.98093
1964	38419998.16895
1965	15949999.80927
1966	5260000.22888
1967	7889999.86649
1968	460000.00834
1969	349999.99404
1970	550000.01192
1971	12029999.73297
1972	52479999.54224
1973	105720001.2207
1974	716210021.97266
1975	520200012.20703
1976	611359985.35156
1977	1200180053.71094
1978	175309997.55859
1979	622780029.29688
1980	515940002.44141
1981	609500000
1982	336880004.88281
1983	175800003.05176
1984	267420013.42773
1985	189869995.11719
1986	213089996.33789
1987	82849998.47412
1988	9960000.03815
1989	40180000.30518
1990	103019996.64307
1991	19049999.23706
1992	56900001.52588
1993	185380004.88281
1994	224289993.28613
1995	87069999.69482
1996	103180000.30518
1997	136309997.55859
1998	772739990.23438
1999	69099998.47412
2000	107860000.61035
2001	7719999.79019
2002	110029998.7793
2003	81559997.55859
2004	116029998.7793
2005	21069999.69482
2006	57400001.52588
2007	220970001.2207
2008	73360000.61035
2009	147070007.32422
2010	-21459999.08447