Year	annual %
1961	2.1490477707300784
1962	2.185709059907296
1963	2.1999454643173806
1964	2.2180430976123944
1965	2.223025204196418
1966	2.20768763919385
1967	2.215289259510783
1968	2.235309687748895
1969	2.2345456906671615
1970	2.232940552097304
1971	2.2629105024200697
1972	2.2777122062234127
1973	2.300756778615991
1974	2.365217022981085
1975	2.3959855228958133
1976	2.491864218600213
1977	2.451610716577406
1978	2.354238791872689
1979	2.4015023409721152
1980	2.266625398705372
1981	2.092505868548116
1982	2.2051211752493742
1983	2.301339566832766
1984	2.3509158726796784
1985	2.359439091903397
1986	2.285940665343091
1987	2.2652244339842014
1988	2.207344283567707
1989	2.2760773359374156
1990	2.646483639715285
1991	2.23558030477831
1992	2.5200410288813657
1993	2.6836504011815094
1994	2.7952706206581865
1995	2.64415748698039
1996	2.256870138151683
1997	2.1739296236932546
1998	2.2159261785709816
1999	2.2759182965895093
2000	2.2487319061882545
2001	2.2525339009654317
2002	2.4593752874403947
2003	2.52343991437165
2004	2.426453707797677
2005	2.4309682571513918
2006	2.4224386222956014
2007	2.358735948441293
2008	2.4079973272118025
2009	2.491193028335786
2010	2.4878078471936647
2011	2.447440448525782
2012	2.4591874636688402
2013	2.446447906523659
2014	2.341499071025723
2015	2.267340545545025
2016	2.265576415758062
2017	2.250484000579789
2018	2.2163236109596056
2019	2.250693759572144
2020	2.2931489073245075
2021	2.248453107622538
2022	1.7242537729654401
2023	2.3115891059524216