Year	annual %
1961	1.1539923478742793
1962	1.1643701034703753
1963	1.154191253675748
1964	1.1415320303851644
1965	1.099435451081689
1966	0.9698001861508061
1967	0.9552134335615676
1968	0.9130528760793482
1969	0.873169098222462
1970	0.7666461472868775
1971	0.7543405431110557
1972	0.8248468116014891
1973	0.7902140168730227
1974	0.7528706244844301
1975	0.722326497305616
1976	0.7084993555134531
1977	0.6911054815755762
1978	0.6831173365371654
1979	0.675781158684984
1980	0.6851297401508418
1981	0.6564049951812905
1982	0.6009143875789249
1983	0.5798060509173695
1984	0.6015153179721864
1985	0.6087060471582646
1986	0.6264381908100489
1987	0.6369385238112528
1988	0.6396368669647927
1989	0.5806479339989039
1990	0.5039240089561758
1991	0.5147647054636764
1992	0.4081949889452403
1993	0.34364330064802573
1994	0.2531711386599653
1995	0.1895138210434908
1996	0.19845195690149353
1997	0.17550553212402065
1998	0.1361046401866588
1999	0.11318888533757843
2000	0.10839337712570796
2001	0.13196494000342796
2002	0.18175038572934454
2003	0.2558525062086119
2004	0.2936904869107906
2005	0.30094288577720363
2006	0.30683408372344445
2007	0.31887717317997044
2008	0.4094068014380383
2009	0.4007531220466092
2010	0.39226351424004235
2011	0.24700807794093294
2012	0.38507466672142243
2013	0.4536450114443795
2014	0.46438658817062617
2015	0.46030886829986173
2016	0.449667880802167
2017	0.39233638039442553
2018	0.37529568725609863
2019	0.3300859002184353
2020	0.23580707644588017
2021	0.08491488149803672
2022	-0.34413671261468437
2023	0.3193738521509317