Year	annual %
1961	5.297022621389374
1962	5.329717358905555
1963	5.4210183672758205
1964	5.558427986539144
1965	5.6209052802576736
1966	5.51407411844194
1967	5.569812877045521
1968	5.62845091114697
1969	5.66112768510898
1970	5.486279594151952
1971	5.458512645972476
1972	5.395749771267361
1973	5.3765294443872875
1974	5.293582230210319
1975	5.291549488318253
1976	5.252470263595896
1977	5.116391298022279
1978	5.29468515804281
1979	4.956229337710909
1980	4.536558139183484
1981	4.171645266555672
1982	4.35942594602146
1983	4.739881924840645
1984	4.9504657733287445
1985	5.078940488998597
1986	4.96633971727141
1987	4.8914715754042675
1988	4.777120503152489
1989	4.623711286485289
1990	4.438111846003707
1991	4.162419627666921
1992	4.46020073546039
1993	4.603616575030273
1994	4.427240790986815
1995	4.180783032341864
1996	3.8616191439775065
1997	3.8604604858926734
1998	3.8915612581487125
1999	3.912851057690787
2000	3.85451058826591
2001	3.9708723996578783
2002	4.165985047363122
2003	4.223887464598988
2004	4.091468545634939
2005	4.159487416207
2006	4.19889351690324
2007	3.8962962515099377
2008	4.275032137761457
2009	4.300946979657866
2010	4.257556328520934
2011	4.256186403615317
2012	4.199948761082766
2013	4.196132535154447
2014	4.255126441596403
2015	4.267887090727299
2016	4.2926355340165685
2017	4.299824108871775
2018	4.2313272947266825
2019	4.181589440673378
2020	4.163911531962583
2021	4.104938658090049
2022	4.044632882434996
2023	4.045714390705555