Year	US Dollars
1960	328630004.88281
1961	298549987.79297
1962	252880004.88281
1963	202279998.7793
1964	153229995.72754
1965	60919998.16895
1966	12949999.80927
1967	18909999.84741
1968	47130001.06812
1969	53150001.52588
1970	30219999.31335
1971	20600000.38147
1972	42150001.52588
1973	70379997.25342
1974	60349998.47412
1975	6000000
1976	34220001.2207
1977	27139999.38965
1978	18420000.07629
1979	9689999.58038
1980	30559999.46594
1981	11359999.65668
1982	266269989.01367
1983	13689999.58038
1984	12680000.30518
1985	14619999.88556
1986	24389999.38965
1987	10979999.54224
1988	9250000
1989	16950000.76294
1990	11970000.26703
1991	10680000.30518
1992	4429999.82834
1993	4039999.96185
1994	5349999.90463
1995	6969999.79019
1996	4590000.15259
1997	5409999.84741
1998	7699999.80927
1999	6630000.11444
2005	25299999.23706
2006	44840000.15259
2007	19840000.15259
2008	71690002.44141
2009	38900001.52588
2010	8109999.65668
2011	627460021.97266
2012	87559997.55859
2013	120819999.69482
2014	195050003.05176
2015	166880004.88281
2016	193160003.66211
2017	456980010.98633
2018	303470001.2207
2019	302829986.57227
2020	296010009.76562
2021	325519989.01367