Year	annual %
1961	-2.60747668013168
1962	-0.46349629992794
1963	-0.504162307511336
1964	6.16322840351609
1965	3.91194814673777
1966	0.117398862072221
1967	-0.0731515526957764
1968	2.95249477063126
1969	1.90810003129724
1970	4.66174725126356
1971	-1.47958568066127
1972	3.32940901916818
1973	3.56821229441842
1974	-15.0953325599451
1975	30.9043213902587
1976	12.4349714575532
1977	8.95969629106533
1978	5.3218785796881
1979	-2.14635766446892
1980	6.24094360052014
1981	1.87136729488202
1982	0.545436416494852
1983	-4.70573392167746
1984	-4.31345866295091
1985	-2.31687515982672
1986	0.340896457254331
1987	1.36358873754079
1988	2.42743624627914
1989	-8.25264304076858
1990	0.426023670867124
1991	5.48514745370471
1992	5.88859627852716
1993	-2.08389027995241
1994	-6.48812162718244
1995	-1.15876084973159
1996	-6.34633063139577
1997	0.655016504487207
1998	-0.134106615967923
1999	-3.57384047491833
2000	2.72616894449054
2001	4.03702377648432
2002	-8.78768522364311
2003	-5.95342618457329
2004	13.4716281964348
2005	13.8046028283975
2006	13.6610094172175
2007	15.1812398384886
2008	4.82323682922426
2009	-4.29209320333995
2010	-3.27909016426729
2011	2.409119189126
2012	5.29582759409561
2013	3.24211135920547
2014	-4.20357729755253