Year	annual %
1961	5.056035385751329
1962	5.187363472491185
1963	5.323152415753569
1964	5.411109317627847
1965	5.4591273502994255
1966	5.280639157239392
1967	5.268065540924027
1968	5.388501061531855
1969	5.428760956196001
1970	5.363531390248681
1971	5.633287060969465
1972	5.689507544690002
1973	5.7005146826212325
1974	5.65367815157154
1975	5.675831044760969
1976	5.641759178222074
1977	5.53843177299737
1978	5.654332053694148
1979	5.370204283417436
1980	4.982026863202975
1981	4.800097426341793
1982	4.831397269764565
1983	5.068609708448008
1984	5.264684599620324
1985	5.288836319438147
1986	5.167547135033331
1987	5.090549020507098
1988	4.808841810788849
1989	4.697503897624557
1990	4.4591762153497
1991	3.902628358807462
1992	4.28536665681672
1993	4.663836483767085
1994	4.601328267779351
1995	4.269738817588987
1996	3.866967585691782
1997	3.8785770314572403
1998	3.9980009349558827
1999	4.058124238224579
2000	4.051974685927064
2001	4.30470559886345
2002	4.453475717653603
2003	4.52096459433244
2004	4.445452947279676
2005	4.505753925567518
2006	4.287973098783127
2007	3.9292091848961235
2008	4.406587619984563
2009	4.566266425527971
2010	4.515877694459846
2011	4.5363954557967645
2012	4.539360711806012
2013	4.523971051702546
2014	4.420330477165351
2015	4.317474076964473
2016	4.28629240419329
2017	4.2665915726944945
2018	4.207465640797992
2019	4.15727499568348
2020	4.133281287001523
2021	4.061388909882055
2022	3.9964857640130305
2023	3.9873191297640886