Year	current US$
1970	11000000
1971	11000000
1972	6000000
1973	6000000
1974	9000000
1975	20000000
1976	14000000
1977	8000000
1978	18000000
1979	15000000
1980	31000000
1981	38099998.47
1982	452600006.1
1983	511500000
1984	499100006.1
1985	410100006.1
1986	552799987.8
1987	751299987.8
1988	749000000
1989	731000000
1990	850000000
1991	795000000
1992	1116700000
1993	907600000
1994	919200000
1995	1407200000
1996	2025100000
1997	2399300000
1998	2874000000
1999	3080800000
2000	3255100000
2001	3038700000
2002	2780500000
2003	2501900000
2004	2217800000
2005	2205600000
2006	2381200000
2007	2824000000
2008	3679400000
2009	3464500000
2010	3768500000
2011	4251000000
2012	4220000000
2013	4837300000
2014	4836600000
2015	4732700000
2016	5004100000
2017	5873100000
2018	5902400000
2019	5909500000
2020	5549900000
2021	6543800000
2022	7613900000
2023	6356700000