Year	annual %
1961	4.607699554631032
1962	4.6481512836676755
1963	4.696955697348877
1964	4.686888388670863
1965	4.6695375820773215
1966	4.672541910566546
1967	6.975184151079553
1968	7.23727443355274
1969	7.208012043669617
1970	7.19402331658657
1971	7.216448089487164
1972	7.2808210735358205
1973	7.3266726610348485
1974	7.404520522760475
1975	7.472853815685276
1976	7.569331331107591
1977	7.760466596628196
1978	6.29427952241937
1979	6.068829215092907
1980	6.211772196544125
1981	6.276485759512575
1982	6.302148694204093
1983	6.283675260058695
1984	6.211895779158
1985	6.13329947328984
1986	5.9713848555026905
1987	7.057703629538419
1988	8.09898804599213
1989	7.47388232070087
1990	6.6792753072244375
1991	5.786838380054487
1992	5.609388573162512
1993	4.136952556276836
1994	1.5107687181250888
1995	2.5333426756704926
1996	4.658359005446553
1997	4.641653261603545
1998	4.760657798890077
1999	3.1801044919152823
2000	2.905049953996152
2001	2.971537956999438
2002	3.0510280202305853
2003	3.142659742404672
2004	3.236553600807426
2005	3.3359828693455698
2006	3.3995181665133405
2007	3.4336128372767107
2008	3.4729291937947058
2009	3.575524333561951
2010	3.634122455353034
2011	3.6843589822172325
2012	3.7218892192544017
2013	3.7760276644733337
2014	3.823120391358991
2015	3.874891638762589
2016	3.893951083053463
2017	3.9477423177616453
2018	4.010947456387311
2019	4.0724579580419356
2020	4.128184958885633
2021	4.1375731799098485
2022	4.156925537785503
2023	4.201920304822658