Year	US Dollars
1960	126790000.91553
1961	139679992.67578
1962	116050003.05176
1963	166919998.16895
1964	131949996.94824
1965	165919998.16895
1966	30479999.54224
1967	32000000
1968	160759994.50684
1969	151529998.7793
1970	205869995.11719
1971	198860000.61035
1972	218759994.50684
1973	150690002.44141
1974	212460006.71387
1975	198009994.50684
1976	372619995.11719
1977	282899993.89648
1978	172550003.05176
1979	220139999.38965
1980	180809997.55859
1981	251729995.72754
1982	268350006.10352
1983	11609999.65668
1984	16049999.23706
1985	26479999.54224
1986	29200000.76294
1987	34830001.83105
1988	39169998.16895
1989	98230003.35693
1990	99389999.38965
1991	67709999.08447
1992	119559997.55859
1993	121180000.30518
1994	89959999.08447
1995	100489997.86377
1996	146039993.28613
1997	112629997.25342
1998	83910003.66211
1999	51720001.2207
2000	51349998.47412
2001	39310001.37329
2002	19180000.30518
2003	14289999.96185
2004	28510000.22888
2005	48750000
2006	69150001.52588
2007	146089996.33789
2008	91610000.61035
2009	146020004.27246
2010	99110000.61035
2011	70559997.55859
2012	39340000.15259
2013	28850000.38147
2014	12529999.73297
2015	17540000.91553
2016	18069999.69482
2017	21250000
2018	14350000.38147
2019	24149999.61853
2020	27190000.53406
2021	26909999.84741