Year	Percent
1966	5.84518
1967	-7.87901
1968	11.19894
1969	-5.84696
1970	-1.7193
1971	8.26158
1972	-7.89074
1973	4.21049
1974	14.1481
1975	-7.91174
1976	4.888
1977	-0.94668
1978	6.69025
1979	0.91742
1980	-2.43742
1981	5.35535
1982	6.79665
1983	2.39904
1984	2.44696
1985	2.51395
1986	5.4678
1987	4.27701
1988	-0.18404
1989	0.6065
1990	0.07589
1991	3.00935
1992	-0.69756
1993	-1.37931
1994	-0.74073
1995	-1.1892
1996	-1.56939
1997	-0.12587
1998	4.03997
1999	1.95708
2000	2.1125