Year	US Dollars
1960	16469999.31335
1961	42419998.16895
1962	58130001.06812
1963	54569999.69482
1964	53259998.32153
1965	83400001.52588
1966	103160003.66211
1967	110339996.33789
1968	112529998.7793
1969	101980003.35693
1970	59759998.32153
1971	103819999.69482
1972	80099998.47412
1973	71199996.94824
1974	93309997.55859
1975	112559997.55859
1976	102629997.25342
1977	123500000
1978	152440002.44141
1979	172750000
1980	220639999.38965
1981	255860000.61035
1982	231770004.27246
1983	268730010.98633
1984	254130004.88281
1985	235910003.66211
1986	181770004.27246
1987	193589996.33789
1988	191389999.38965
1989	233509994.50684
1990	211570007.32422
1991	181710006.71387
1992	200419998.16895
1993	209429992.67578
1994	164429992.67578
1995	145910003.66211
1996	131600006.10352
1997	125870002.74658
1998	86290000.91553
1999	45060001.37329
2000	59200000.76294
2001	85000000
2002	112449996.94824
2003	99459999.08447
2004	109370002.74658
2005	75360000.61035
2006	76599998.47412
2007	133550003.05176
2008	139500000
2009	124069999.69482
2010	263859985.35156
2011	258459991.45508
2012	288609985.35156
2013	332339996.33789
2014	107400001.52588
2015	92959999.08447
2016	120279998.7793
2017	153250000
2018	156770004.27246
2019	143270004.27246
2020	170639999.38965
2021	169050003.05176