Year	annual %
1961	-2.498824464264546
1962	-3.171646028632476
1963	-3.2066816126471642
1964	-3.078607196742079
1965	-2.91835859039121
1966	-2.8596772431622055
1967	-2.983293038028722
1968	-3.232086493217218
1969	-3.119210003916978
1970	-2.92953061278479
1971	-2.1407561562634134
1972	-1.4719785617679522
1973	-1.593159701092239
1974	-1.4898919732065818
1975	-0.8285285966647707
1976	-0.05408457049589435
1977	-0.058571576775895605
1978	-0.12425981171400027
1979	-0.2048166657158706
1980	-0.21590835910224684
1981	0.04303408116631346
1982	0.05716044965444079
1983	0.04533542607678472
1984	0.09082217409501417
1985	0.16517142680283237
1986	0.23257832572260032
1987	0.3336947688930024
1988	0.45961481206793287
1989	0.6671635936411296
1990	0.7725888727331648
1991	0.06434408479325937
1992	-0.35256852735502503
1993	-0.3550684277496114
1994	-0.23406684932538802
1995	-0.4166827035162366
1996	-0.39880628672913193
1997	-0.11693258080267444
1998	-0.11904293713251493
1999	-0.09688857303632624
2000	-0.014534329971809527
2001	-0.01368960171042524
2002	-0.06452159650062
2003	-0.02570728596775361
2004	0.0002119002472606004
2005	0.011653822166677867
2006	-0.14785698451827625
2007	-0.2784253459294744
2008	-0.2514677667983802
2009	-0.1759984341874118
2010	-0.17274098109496563
2011	-0.8706565891266629
2012	-1.4815708876406615
2013	-1.3746762647205324
2014	-1.2438943662732023
2015	-1.1926048195141883
2016	-0.9922350608706318
2017	-0.9139606812819707
2018	-1.080524095011216
2019	-1.2147707361538593
2020	-1.490055576010144
2021	-1.5941051003115578
2022	-1.502611594744621
2023	-1.688131698188849