Year	annual %
1961	1.4203651778985042
1962	1.3934164635425366
1963	1.3049000882332893
1964	1.2923782718749812
1965	1.3430431292274085
1966	1.3100886966142704
1967	1.2925663027820948
1968	1.280085848002504
1969	1.2653354963446342
1970	1.252826233155016
1971	1.2375085937194026
1972	1.6758211432348018
1973	1.754907257159621
1974	1.7701378170765552
1975	1.8155979195794252
1976	1.8561893870361854
1977	1.8894505949715206
1978	1.916169571756548
1979	1.9315554812483353
1980	1.9365942881750615
1981	1.9564899186959566
1982	1.9851094619924428
1983	1.053890182534086
1984	0.8181850675618637
1985	0.7832564405217222
1986	0.7494229636133868
1987	0.7102138580795663
1988	0.6593974157135671
1989	0.6018935991711735
1990	0.5256657055962993
1991	0.41697108292190327
1992	0.29712797690767206
1993	1.0701597745735199
1994	1.0159624453619363
1995	0.9783829558635196
1996	0.9520093039110006
1997	0.9533173414670655
1998	0.9185280971766867
1999	0.8966205218248844
2000	0.8864795391566334
2001	-0.801141141778345
2002	-0.9755493942309161
2003	-1.11534956547663
2004	-0.07799606742879983
2005	0.006466920460477881
2006	-0.018215591525162042
2007	-0.08095792286332959
2008	-0.15257956966415306
2009	-0.20081043205225535
2010	-0.7047614401891992
2011	-0.7647095574630831
2012	-0.3933795452843333
2013	-0.4658447458775011
2014	-0.5402891081422242
2015	-0.6053479149063319
2016	-0.6470801165832816
2017	-0.6719793663239432
2018	-0.7014362243529471
2019	-0.7297666209048612
2020	-0.7635899807545753
2021	-0.8252053176055963
2022	-0.8640325006009055
2023	-0.8517735907663915