Year	annual %
1961	2.3723115337785945
1962	2.3686194083662753
1963	2.4158359479134752
1964	2.405514626555723
1965	2.4027633427856943
1966	2.1408356284196017
1967	2.2095313423722422
1968	2.2712393684174756
1969	2.3004236932654383
1970	2.235726478815513
1971	3.2859813926724324
1972	2.476632701150258
1973	2.4473403374907843
1974	2.341688809468694
1975	2.2561859476877673
1976	1.3722322149813682
1977	1.0443751328448352
1978	0.9863163903105046
1979	0.9228405752595851
1980	0.8630091309129715
1981	0.8570300882986276
1982	0.8377700813121308
1983	0.839491787391523
1984	0.7920163763975379
1985	0.7681269597282466
1986	0.6925697280245204
1987	0.6471882135940791
1988	0.579693777670053
1989	0.5617818354951098
1990	0.4948343679123869
1991	0.5659338024291553
1992	0.5478722438688236
1993	0.4992485234798539
1994	0.4526843194830559
1995	0.4077821654191456
1996	0.39209874179223425
1997	0.40065729795483235
1998	0.43257732698971235
1999	0.3419021111801904
2000	0.3276095747449492
2001	1.9316237589111416
2002	2.2828721101181926
2003	2.093400149337772
2004	1.754431988048517
2005	1.5778406674816683
2006	1.3805809807849951
2007	1.288009098271273
2008	1.1282732314254984
2009	0.9769490893727478
2010	0.9283595327648572
2011	0.09737660405158302
2012	-0.07300099716017824
2013	-0.05873318012622299
2014	-0.04722910645408704
2015	-0.0218270263170706
2016	0.03199619804379166
2017	0.0033754407742315196
2018	-0.0384280781568938
2019	-0.05100149145141581
2020	-0.20263122266494107
2021	-0.36738454006254634
2022	-0.34810676218614073
2023	-0.39171801757594393