Year	Percent
1962	9.54985
1963	11.84861
1964	6.03336
1965	11.66931
1966	0.89761
1967	-0.93207
1968	1.22484
1969	9.58021
1970	6.5837
1971	5.00388
1972	8.51155
1973	9.15606
1974	-0.77113
1975	-1.39542
1976	14.7139
1977	10.12421
1978	6.31705
1979	5.62317
1980	7.20707
1981	6.72505
1982	1.3638
1983	4.37896
1984	8.89802
1985	-0.31951
1986	9.68119
1987	12.26255
1988	7.60348
1989	1.22301
1990	3.49743
1991	4.82909
1992	5.34667
1993	4.39246
1994	3.67484
1995	0.36659
1996	-0.26782
1997	4.22837
1998	-6.6651
1999	1.53229
2000	6.71848
2001	-0.1775
2002	1.20745
2003	3.25996
2004	7.85555
2005	6.92012
2006	6.34749
2007	5.55355
2008	1.5188
2009	-2.66888
2010	5.9864
2011	4.11213
2012	0.58375
2013	2.68787
2014	2.04317
2015	1.52002
2016	1.53212
2017	3.01766