Year	annual %
1961	-0.36275281657823655
1962	-0.37257028659111313
1963	-0.3512498726873474
1964	-0.34059281978011313
1965	-0.5159801777405022
1966	-0.46758358662980015
1967	-0.1694782941082309
1968	-0.2638475663931388
1969	-0.4152397718785892
1970	-0.6058300516834407
1971	-0.8148051581441251
1972	-0.7680999265706419
1973	-0.7620139959553143
1974	-0.7207928290976326
1975	-0.6382799660843119
1976	-0.6502545722912458
1977	-0.7863679802466663
1978	-0.9763966866017171
1979	-0.958559207226628
1980	-0.851980132924794
1981	-0.5365015099382759
1982	-0.38769084360565387
1983	-0.43559244772694683
1984	-0.47379473329787913
1985	-0.5144861527505924
1986	-0.5148201770411163
1987	-0.5235753235013334
1988	-0.6170249138439488
1989	-0.642106602544942
1990	-0.5902038095157138
1991	-0.7934745995368928
1992	-0.557995938242783
1993	0.010372230549251071
1994	0.05581933320277699
1995	-0.07137296905106894
1996	-0.1595439071864746
1997	-0.1237080430341706
1998	-0.09211964950118556
1999	-0.08725213740130755
2000	-0.48758140747557377
2001	-0.7760643418246644
2002	-0.8060739888354931
2003	-0.43404572792694296
2004	-0.3938167011558136
2005	-0.41429717224174567
2006	-0.41348695040926486
2007	-0.5753465811065013
2008	-0.5735728397492181
2009	-0.35304197111406665
2010	-0.46655769250898516
2011	-0.3364190067962767
2012	-0.27608373499970185
2013	-0.25277068186908025
2014	-0.2540726268987612
2015	-0.3014185152307931
2016	-0.3707133344963722
2017	-0.41555858148458924
2018	-0.42152358867319606
2019	-0.4134354414107406
2020	-0.5408967148410113
2021	-1.0913676815889346
2022	-1.6829181992391966
2023	-0.4765422125444445