Year	annual %
1961	2.40098024861967
1962	2.37800129934822
1963	2.33687309197699
1964	2.28056608974663
1965	2.1925741669466
1966	2.11013403134459
1967	2.09921469494575
1968	2.13585475955151
1969	2.20123962862963
1970	2.22338534110974
1971	2.34627694734029
1972	2.58172950951832
1973	2.62846202789301
1974	2.618200552158
1975	2.5946213625383
1976	2.56828726828609
1977	2.51917515404537
1978	2.39542323330719
1979	2.30787171646919
1980	2.40635616192922
1981	2.38876413604899
1982	2.31706560888592
1983	2.37420556054786
1984	2.36741111777344
1985	2.29520479940121
1986	2.197687562698
1987	2.05733910731749
1988	1.79903664939245
1989	1.67262210378134
1990	1.74383134776472
1991	1.86525692297085
1992	1.83365147351174
1993	1.70000836162043
1994	1.62401998531121
1995	1.57476676123342
1996	1.49759897305568
1997	1.42281371437745
1998	-5.32677942762829
1999	-10.1573793821088
2000	-3.51843267891487
2001	0.926432472973796
2002	0.354213856393241
2003	-0.399380815927376
2004	-0.391430652434404
2005	-0.393133233881963
2006	-0.405797451423854
2007	-0.409991971488962
2008	-0.379235298953869
2009	-0.327924142653747
2010	-0.273145595669506
2011	0.377238015997646
2012	0.430785117580496
2013	0.607467946683114
2014	-0.294473630866066
2015	-1.3649323381159
2016	-0.596734073866868
2017	0.753584842739213
2018	0.33901096210321
2019	-0.457730006092952
2020	0.0701311089258031
2021	-0.229015994470004
2022	-1.01021532573298
2023	-0.66461489766678