Year	annual %
1961	1.2442194408632
1962	1.13837356755187
1963	1.12766814174517
1964	1.11196681157517
1965	1.11519925330682
1966	1.12939965535947
1967	1.14600789140573
1968	1.14497612101254
1969	1.19305392742778
1970	1.45096465763868
1971	1.62700646323083
1972	1.58686900089863
1973	1.54450782231442
1974	1.49277056580971
1975	1.58837530777793
1976	1.71088746255683
1977	1.71678036223655
1978	1.72869904482615
1979	1.74453465925679
1980	1.80016142963221
1981	1.85391109284834
1982	1.82729801730868
1983	1.76414638260487
1984	1.68687534977623
1985	1.61445703312857
1986	1.53911866526115
1987	1.45074159669773
1988	1.36510978443943
1989	1.28764985945875
1990	1.30431403690695
1991	1.37281484876296
1992	1.48065232528655
1993	1.47452801235717
1994	1.31438333432947
1995	1.17990599936292
1996	1.05839057700352
1997	0.959858447122183
1998	0.897194379841246
1999	0.889216327882305
2000	0.782994722741428
2001	0.683551868949005
2002	0.747538322118724
2003	0.768367866645381
2004	0.728418123935715
2005	0.695945167676197
2006	0.653297728777027
2007	0.627569517206789
2008	0.629587850277381
2009	0.657477003615403
2010	0.732191056391629
2011	0.705377764391326
2012	0.567095582689076
2013	0.492075368748063
2014	0.473649181569482
2015	0.467430586800065
2016	0.448818487957651
2017	0.424237575434501
2018	0.40839260143256
2019	0.389934037054534
2020	0.365547330085114
2021	0.230712748065059
2022	0.114601078443679
2023	0.218823329233446