Year	current US$
1960	0
1961	1456000.2329600372
1962	112000.01792000287
1963	2016000.3225600517
1964	6272001.003520161
1965	8960001.43360023
1966	6272001.003520161
1967	6048000.967680154
1968	7616001.218560195
1969	6832001.0931201745
1970	11760001.881600302
1971	13593759.55811219
1972	16526174.22659301
1973	16190560.05135532
1974	28133998.214352358
1975	42807042.34755392
1976	28884709.645601008
1977	52059114.89396114
1978	61924745.21282223
1979	80224009.03679205
1980	54251757.96561869
1981	10996081.531486684
1982	-19229258.80686512
1983	-7414972.983187147
1984	79572467.70359422
1985	33789390.13149871
1986	-32426956.99259018
1987	37559243.924709685
1988	144743170.25602818
1989	-97112588.88887595
1990	-21979816.24873616
1991	-23109243.69747899
1992	72568940.49346879
1993	-43438266.557645135
1994	140995024.8756219
1995	111435413.86020057
1996	284370257.9666161
1997	285196290.35632104
1998	148915650.94935173
1999	148330838.91295785
2000	51962058.738425925
2001	55214296.298491545
2002	53049204.79695301
2003	62577960.99839604
2004	73345159.3879008