Year	Years
1960	1.147
1961	-0.2406
1962	0.2935
1963	-0.4255
1964	-1.041
1965	-1.248
1966	-0.7315
1967	-1.306
1968	-0.4546
1969	0.4381
1970	0.4431
1971	0.5022
1972	0.2333
1973	0.7793
1974	0.8549
1975	1.618
1976	1.632
1977	2.079
1978	2.612
1979	2.82
1980	2.976
1981	3.01
1982	2.292
1983	1.084
1984	0.5589
1985	0.06217
1986	0.6319
1987	1.432
1988	0.7247
1989	-0.04669
1990	-0.6272
1991	-0.3288
1992	1.69
1993	3.034
1994	4.041
1995	3.791
1996	3.354
1997	2.904
1998	3.535
1999	3.212
2000	3.04
2001	2.193
2002	-0.3763
2003	-0.5908
2004	-0.1909