Year	Years
1965	-4.072
1966	1.635
1967	1.255
1968	2.919
1969	5.076
1970	10.84
1971	9.487
1972	8.032
1973	9.404
1974	6.181
1975	13.12
1976	4.633
1977	3.546
1978	3.41
1979	3.688
1980	0.9051
1981	0.00436
1982	-1.907
1983	-2.159
1984	-1.375
1985	-0.6092
1986	0.2682
1987	1.317
1988	-0.3891
1989	-0.3305
1990	0.1182
1991	0.2244
1992	0.1199
1993	1.374
1994	0.7845
1995	1.899
1996	1.137
1997	0.3242
1998	0.5929
1999	0.585
2000	1.902
2001	1.736
2002	1.945
2003	1.891