Year	current US$
1970	4400000.095
1971	4607883.93
1972	5100764.275
1973	6380088.329
1974	8133522.986999999
1975	9213089.943
1976	9649999.619
1977	10000000
1978	11699999.81
1979	14199999.81
1980	9100000.381
1981	11050000.19
1982	9050000.191
1983	8449999.809
1984	10399999.62
1985	8149999.619000001
1986	10800000.19
1987	28200000.76
1988	31950000.76
1989	32000000
1990	37900001.53
1991	45150001.53
1992	54500000
1993	55349998.47
1994	57200000.76
1995	60900000
1996	68000000
1997	77000000
1998	86750000
1999	98700000
2000	113200000
2001	129950000
2002	125061000
2003	130500000
2004	130508571.515
2005	94455423.8
2006	87348422.95
2007	138674184.035
2008	101160650.815
2009	114476089.54
2010	81868796.19
2011	147293266.1916
2012	152319842.442333
2013	190981632.979834
2014	188716960.993834
2015	198038294.834484
2016	157509039.9835
2017	85175892.5
2018	85175892.5
2019	85175892.5
2020	85175892.5
2021	85175892.5
2022	85175892.5
2023	85175892.5