Year	annual %
1961	-0.5131011421772016
1962	-0.6508008241364217
1963	-0.7228488857305841
1964	-0.6748407504215184
1965	-0.7158988875118774
1966	-0.7009177998377112
1967	-0.6387275003005864
1968	-0.6356981861721037
1969	-0.6067822106495386
1970	-0.6701255715091327
1971	-0.7900979904157404
1972	-0.7873237152612107
1973	-0.7672774694715758
1974	-0.652617409377353
1975	-0.5204152509736193
1976	-0.5653911696953464
1977	-0.6554542021390436
1978	-0.7823300130741565
1979	-0.956587306473521
1980	-0.7636430307327389
1981	-0.49997732211856155
1982	-0.5682687478051612
1983	-0.6621711682397254
1984	-0.7146645984544338
1985	-0.6962113336893886
1986	-0.6847024044772108
1987	-0.6845951569160665
1988	-0.6727550744456217
1989	-1.6082553253004666
1990	-1.1150475914332374
1991	0.35957107702047303
1992	0.3276575187168764
1993	0.25144902838023014
1994	0.22725413663035746
1995	0.2235943895771347
1996	0.18974348627896925
1997	0.16160250558061
1998	0.12905546478222626
1999	0.07718183708825087
2000	0.09937935057997298
2001	-0.49788733279001157
2002	-1.4549084707116802
2003	-1.4617131758748765
2004	-1.407793743510641
2005	-1.5836347756973717
2006	-1.7439947313595654
2007	-1.7565426969791718
2008	-1.79034242242272
2009	-1.780803739068743
2010	-1.6662769926069267
2011	-1.731586288325958
2012	-1.5662661418380959
2013	-1.1864449029647341
2014	-1.18543860610644
2015	-1.1590482960752495
2016	-1.245353271111129
2017	-1.2390605310030045
2018	-1.130520009378896
2019	-1.0732236554039003
2020	-1.2715552438259181
2021	-1.499546483037536
2022	-1.8030352515216084
2023	-1.6961687098605762