Year	annual %
1961	0.16811500209121277
1962	0.16918519512802277
1963	0.14469760240665153
1964	0.10902526139506108
1965	-0.02467920859537287
1966	-0.22277546628669143
1967	-0.16008247498643868
1968	-0.2198608238095261
1969	-0.3097355595142659
1970	-0.40424880137165076
1971	-0.3994117760793756
1972	-0.34326363078271527
1973	-0.3646456410952794
1974	-0.3716067891745638
1975	-0.33937942626282336
1976	-0.27631058226505445
1977	-0.2804084727198983
1978	-0.3377729200239088
1979	-0.20220410322563964
1980	-0.007542459081506081
1981	-0.247880482320312
1982	-0.3532723815692975
1983	-0.35015940597997997
1984	-0.33334957099508244
1985	-0.3344595228348908
1986	-0.25222465164536345
1987	-0.21353880520055668
1988	-0.268785946181751
1989	-0.11636185224955398
1990	0.09380909525376069
1991	0.16309040443741196
1992	0.11263444150986857
1993	0.10199714109515412
1994	0.014135572558956255
1995	-0.09021282483216453
1996	-0.017867701541902647
1997	-0.050599761557677425
1998	-0.10788480300270464
1999	-0.20029384894419877
2000	-0.3164446232940179
2001	-0.4025065242821455
2002	-0.45159961455448183
2003	-0.40140065819220183
2004	-0.37655394868212966
2005	-0.374638682112888
2006	-0.34927346704473905
2007	-0.4102190905788916
2008	-0.23416362873575736
2009	-0.1096473615138791
2010	-0.021035936981633085
2011	0.07854607763810861
2012	0.07218888161348502
2013	0.11733551150587118
2014	0.115271127960483
2015	0.10806185621355269
2016	0.06618103735209502
2017	-0.009354743872250992
2018	-0.07118888276529844
2019	-0.08578662686603877
2020	-0.25272117784322745
2021	-0.3784171328582602
2022	-1.7021036760296084
2023	-0.5786992061120344