Year	annual %
1961	0.05219216197292553
1962	0.04647084264308887
1963	-0.037623800286780806
1964	-0.07146449141821165
1965	-0.10186286288720225
1966	-0.17763777417292204
1967	-0.26298615708283535
1968	-0.2994306491935248
1969	-0.27582957372432304
1970	-0.28248737678920577
1971	0.06372817880864545
1972	0.009105432349315379
1973	-0.018341585387886994
1974	-0.05171050640643671
1975	-0.04426407440409719
1976	0.09771193377976317
1977	0.12290609802488461
1978	0.11544831448327386
1979	0.12288777176546262
1980	0.08100839930480674
1981	-0.13347333981256781
1982	-0.12620983539163433
1983	-0.11352564099463791
1984	-0.13197911328944656
1985	-0.14749753842046687
1986	-0.17161288830688193
1987	-0.2500558857748132
1988	-0.24147034272294832
1989	-0.13427539770120234
1990	-0.1543040146375887
1991	-0.06727915783876881
1992	-0.04248053567266652
1993	-0.11751909198342503
1994	-0.20512033804898522
1995	-0.23974532713363317
1996	-0.18764664049912483
1997	-0.1678269553013365
1998	-0.20799473451936024
1999	-0.22494029019416928
2000	-0.24932699554970839
2001	-0.686601961036672
2002	-0.9319016848452435
2003	-0.8942939156055587
2004	-0.8561573206010706
2005	-0.8339697705546598
2006	-0.726431759370783
2007	-0.6864364904988349
2008	-0.6220009054361242
2009	-0.6642799973291176
2010	-0.6912287877438104
2011	-0.5630793636390479
2012	-0.3450147679073865
2013	-0.3281667971889277
2014	-0.3135687112658587
2015	-0.3606947005116865
2016	-0.37037633403622294
2017	-0.4313805258677519
2018	-0.4638399049525219
2019	-0.5707862693958958
2020	-0.5738287507070226
2021	-0.9432040037495142
2022	-0.813564232896951
2023	-0.6328618019498009