Year	annual %
1961	2.22478200530615
1962	2.26718771990366
1963	2.32407700636253
1964	2.38161556068392
1965	1.53561502939054
1966	0.677240922273343
1967	0.670611696125509
1968	0.677129241924096
1969	0.698143407831318
1970	0.934203358874734
1971	1.98855917780599
1972	3.65056705225412
1973	4.77484031959491
1974	5.09045515798467
1975	5.12419605203818
1976	5.15306516789676
1977	5.15484730413884
1978	5.12391395966631
1979	5.06231805550087
1980	4.92196293214195
1981	4.59857477180513
1982	4.01518519279326
1983	3.61968099679856
1984	3.56102549843446
1985	3.5335424068902
1986	3.49988934713934
1987	3.42570495368788
1988	3.29740189321845
1989	3.1528088136861
1990	3.01201857228217
1991	2.87375886498308
1992	2.86395904419004
1993	2.88383633405035
1994	2.78404362280986
1995	2.6314388804012
1996	2.46573135709364
1997	2.32306138427136
1998	2.21959718729796
1999	2.14267215861941
2000	2.07271158015976
2001	2.0032685597646
2002	1.86676435735896
2003	1.75228455517665
2004	1.74841429333915
2005	1.79764812587178
2006	1.87873623072759
2007	1.96495716378833
2008	2.03026526526897
2009	2.05499060689998
2010	2.06095163216795
2011	2.0055569612499
2012	1.92085566899296
2013	1.90562696994558
2014	1.92508536769659
2015	1.96236891205249
2016	2.02880248969911
2017	2.07922251369081
2018	2.04278510078483
2019	1.95085634796209
2020	1.85098576387245
2021	1.6367427551677
2022	1.60475774255203
2023	1.69845730907796