Year	current US$
1971	19999.9995529652
1977	70000.0002980232
1978	1090000.0333786
1979	1659999.9666214
1980	529999.971389771
1981	370000.00476837205
1982	540000.021457672
1983	1039999.96185303
1984	540000.021457672
1985	3589999.91416931
1986	579999.983310699
1987	319999.99284744303
1988	439999.997615814
1989	1179999.94754791
1990	9100000.38146973
1991	1360000.01430511
1992	7519999.98092651
1993	1940000.0572204601
1994	19719999.3133545
1995	23819999.6948242
1996	15590000.1525879
1997	33430000.305175804
1998	16370000.839233398
1999	25670000.0762939
2000	-6610000.1335144
2001	-10569999.6948242
2002	-15029999.7329712
2003	-8649999.61853027
2004	-9460000.03814697
2005	-9869999.88555908
2006	7320000.17166138
2007	10960000.038146999
2008	4840000.15258789
2009	1590000.0333786
2010	560000.002384186