Year	annual %
1961	1.78962610093243
1962	1.98571804377724
1963	2.09184415720987
1964	2.05988447601358
1965	2.09307457656919
1966	2.11290344967551
1967	2.12036697041009
1968	2.12644707422431
1969	1.98399524206093
1970	3.39899477293462
1971	5.39622823970731
1972	5.77579162709011
1973	5.49248312711151
1974	5.28271170780497
1975	5.0030872620657
1976	4.70933477977268
1977	4.46442321973152
1978	4.08325792750329
1979	3.9352606085721
1980	4.31394926606177
1981	4.59456880609551
1982	4.50489731781473
1983	4.40268486791603
1984	4.30512675004139
1985	4.21659742518106
1986	4.0549823106897
1987	3.88827421029172
1988	3.74690340133002
1989	3.81669451931201
1990	4.47487011364269
1991	4.92163705640406
1992	4.77445764539318
1993	4.63678390336539
1994	4.4917730294359
1995	4.31085120631692
1996	4.15607009400003
1997	3.97053860844528
1998	3.7728877134313
1999	3.58348860618734
2000	3.49733538150567
2001	3.45955801183736
2002	3.35799722306069
2003	3.25800960597195
2004	3.19495923650163
2005	3.13242221135563
2006	3.05595726835774
2007	3.00562369574523
2008	2.92965280884495
2009	2.85196480411381
2010	2.75993369995976
2011	2.58853873843781
2012	2.43532400043746
2013	2.3499412828226
2014	2.28758988319717
2015	2.24463644959813
2016	2.18250710253431
2017	2.10758301710141
2018	2.02863766124782
2019	1.90819265891466
2020	1.76406837687354
2021	1.21820372930296
2022	0.83308238204777
2023	0.875266427063587