Year	annual %
1961	2.884205314144708
1962	2.841697690810136
1963	2.8348826887833525
1964	2.697132287637345
1965	2.490644359885536
1966	2.443507828430029
1967	2.399247401711577
1968	2.3568593821670163
1969	2.2825872352806726
1970	2.1591349237089617
1971	2.1144960451092487
1972	2.24296585213834
1973	2.3914073643678506
1974	2.283692281215437
1975	2.2207670252362988
1976	2.1763017994973097
1977	2.0956604274698947
1978	1.9851571653832139
1979	1.8335091330478122
1980	1.8288301235987348
1981	0.9314118364610664
1982	0.9892386338438541
1983	1.0052636888548676
1984	1.0283556688816162
1985	1.0586928540413254
1986	1.0416556772200494
1987	0.9352385508500873
1988	0.9410549934595309
1989	0.9930239577859936
1990	0.8732093719183638
1991	0.8471778570533672
1992	0.9240308784096811
1993	0.9401896013089299
1994	0.988044659618609
1995	1.194943108650179
1996	1.273247346893271
1997	1.2485529445964971
1998	1.2260208983344825
1999	1.166024423155676
2000	1.1127691818927588
2001	1.0883814642902223
2002	0.93156083305675
2003	0.8455333710698341
2004	0.7502623127533496
2005	0.6288193295864772
2006	0.627406447391607
2007	0.6345921495011737
2008	0.644879714090905
2009	0.6483094724788714
2010	0.622744152813425
2011	0.6671944082754351
2012	0.8661376798650906
2013	0.8941166583627904
2014	0.941673087277664
2015	0.9773887673231201
2016	0.9567649917259899
2017	0.9865076112856457
2018	1.3529480383505756
2019	1.1998808098153972
2020	0.8739779112304689
2021	0.9658701442787532
2022	0.9210067499847696
2023	1.0158496990464698