Year	US Dollars
1960	136479995.72754
1961	184330001.83105
1962	176860000.61035
1963	98620002.74658
1964	143919998.16895
1965	179539993.28613
1966	228419998.16895
1967	169820007.32422
1968	202279998.7793
1969	234169998.16895
1970	188449996.94824
1971	278230010.98633
1972	294779998.7793
1973	216669998.16895
1974	292540008.54492
1975	385230010.98633
1976	236369995.11719
1977	240240005.49316
1978	205039993.28613
1979	303989990.23438
1980	309910003.66211
1981	347209991.45508
1982	329619995.11719
1983	432070007.32422
1984	755690002.44141
1985	557059997.55859
1986	422890014.64844
1987	547659973.14453
1988	172910003.66211
1989	200470001.2207
1990	619250000
1991	361459991.45508
1992	233470001.2207
1993	169619995.11719
1994	99190002.44141
1995	113669998.16894
1996	-406410003.66211
1997	-233949996.94824
1998	230770004.27246
1999	153419998.16895
2000	63740001.67847
2001	41180000.30518
2002	115680000.30518
2003	123489997.86377
2004	300760009.76562
2005	32470001.2207
2006	259760009.76562
2007	228199996.94824
2008	152470001.2207
2009	132210006.71387
2010	5090000.15259
2011	42369998.93188
2012	19260000.22888
2013	-110110000.61035
2014	16520000.45776
2015	-5420000.07629
2016	-51819999.69482
2017	-31610000.61035
2018	-38709999.08447
2019	-2869999.88556
2020	-5190000.05722
2021	7000000