Year	annual %
1961	0.805085263650629
1962	0.721622435848292
1963	0.403565948731515
1964	0.0554641622745771
1965	-0.407786764016639
1966	-0.754120303282112
1967	-0.634300161386171
1968	-0.427640384149605
1969	-0.897396122779751
1970	-0.886270250512273
1971	-0.423397124354385
1972	-0.154288053208668
1973	0.0309322603347991
1974	1.3948780479403
1975	3.80041403952037
1976	2.8440967172144
1977	1.06175496688687
1978	1.07895655527658
1979	1.07199361183604
1980	1.08143206705044
1981	0.867080703431986
1982	0.611332101414692
1983	0.463965043811485
1984	0.384553079813775
1985	0.273538751901793
1986	0.0909537577185482
1987	-0.0269454386407305
1988	-0.103951995334113
1989	-0.145920470784671
1990	-0.217948479672573
1991	-0.230481754329704
1992	-0.0777492667122609
1993	0.122316595483017
1994	0.269089467950249
1995	0.346203938301886
1996	0.375996187340096
1997	0.446460604971181
1998	0.505389233382722
1999	0.565630442435222
2000	0.702859953319024
2001	0.705230637323876
2002	0.547667939660689
2003	0.375411414855816
2004	0.239128989611917
2005	0.185532266654625
2006	0.18033244147767
2007	0.196304384487306
2008	0.144191279853498
2009	0.0953308592370666
2010	0.0459100367184907
2011	-0.147084878575482
2012	-0.405421787747567
2013	-0.548815210952228
2014	-0.539190466792077
2015	-0.414141101993213
2016	-0.315459016997883
2017	-0.243889410358812
2018	-0.160104021146769
2019	0.0237334946497115
2020	0.10511412524675
2021	0.626850165433157
2022	0.460948935788035
2023	1.10479001213844