Year	US Dollars
1960	36490001.67847
1961	56040000.91553
1962	51799999.23706
1963	52029998.7793
1964	83760002.13623
1965	90190002.44141
1966	141679992.67578
1967	147350006.10352
1968	145860000.61035
1969	111500000
1970	98019996.64307
1971	115919998.16894
1972	161740005.49316
1973	164500000
1974	155649993.89648
1975	185759994.50684
1976	168690002.44141
1977	154000000
1978	199059997.55859
1979	249990005.49316
1980	237539993.28613
1981	228610000.61035
1982	247339996.33789
1983	259309997.55859
1984	266369995.11719
1985	247630004.88281
1986	215750000
1987	289010009.76562
1988	246139999.38965
1989	264850006.10352
1990	216070007.32422
1991	192940002.44141
1992	153750000
1993	191449996.94824
1994	122139999.38965
1995	116910003.66211
1996	89150001.52588
1997	168860000.61035
1998	139740005.49316
1999	81569999.69482
2000	44130001.06812
2001	42169998.16895
2002	53639999.38965
2003	36840000.15259
2004	58110000.61035
2005	57450000.76294
2006	76510002.13623
2007	113250000
2008	746039978.02734
2009	322459991.45508
2010	164649993.89648
2011	126809997.55859
2012	77400001.52588
2013	112849998.47412
2014	101779998.7793
2015	70830001.83105
2016	96889999.38965
2017	107629997.25342
2018	88129997.25342
2019	68910003.66211
2020	78879997.25342
2021	92680000.30518