Year	Percent
1972	0.00198
1973	1.76472
1975	0.05021
1976	0.00042
1977	0.38124
1978	0.37746
1979	0.31766
1980	0.16914
1981	0.12361
1982	0.23546
1983	0.01457
1984	0.35678
1985	0.01287
1986	0.01165
1987	0.07733
1988	0.04149
1989	0.37939
1990	1.23947
1991	0.12435
1992	-0.00684
1993	0.65143
1994	0.00132
1995	0.01957
1996	-0.02384
1997	0.30381
1998	0.00063
1999	0.14589
2000	-1.51457