Year	current US$
1978	28951940.54
1979	32715690.610000003
1980	34742328.64
1981	40532714.84
1982	43427909.85
1983	43427909.85
1984	43428222.66
1985	43428539.28
1986	39268875.12
1987	39011703.49
1988	39011703.49
1989	39011703.49
1990	39011703.49
1991	39011703.49
1992	39011703.49
1993	39011703.49
1994	39011703.49
1995	39011704.2720098
1996	39000000
1997	39000000
1998	39000000
1999	39000000
2000	39000000
2001	39011703.5110533
2002	39011703.5110533
2003	39011703.5110533
2004	39011703.5110533
2005	39011703.5110533
2006	39011703.5110533
2007	39011703.5110533
2008	39011703.5110533
2009	39011703.5110533
2010	39011703.5110533
2011	39011703.5110533
2012	39011703.5110533
2013	39011703.5110533
2014	39011703.5110533
2015	39011703.5110533
2016	39011703.5110533
2017	39011703.5110533
2018	39011703.5110533
2019	39011703.5110533
2020	39011703.5110533
2021	39011703.5110533
2022	39011703.5110533
2023	39000000