Year	Percent
1961	5.63874
1962	4.84745
1963	-0.15261
1964	8.40012
1965	3.74368
1966	1.9192
1967	2.60941
1968	3.34384
1969	5.73615
1970	1.96614
1971	2.29174
1972	3.33657
1973	3.46559
1974	-1.58171
1975	-1.7402
1976	5.65867
1977	1.55351
1978	1.90929
1979	3.61424
1980	-0.60393
1981	-0.63791
1982	3.76087
1983	2.66653
1984	4.22072
1985	3.96154
1986	4.76406
1987	0.12732
1988	-0.0622
1989	0.58486
1990	1.31053
1991	1.13086
1992	1.62043
1993	-0.32199
1994	4.97733
1995	2.49229
1996	2.31937
1997	2.83265
1998	1.84762
1999	2.60793
2000	3.40072
2001	0.46253
2002	0.14588
2003	0.11737
2004	2.40321
2005	2.05513
2006	3.57204
2007	0.46275
2008	-1.09485
2009	-5.41399
2010	1.41949
2011	0.92039
2012	-0.14995
2013	0.51343
2014	1.10541
2015	0.89136
2016	1.17145
2017	1.50309