Year	annual %
1961	1.873455096341317
1962	3.7076433280334555
1963	7.145784456533022
1964	5.406403434311116
1965	4.102491284691027
1966	-1.5375904697525726
1967	-9.101463189856716
1968	1.5639822322571746
1969	15.266502164598464
1970	17.566412112749234
1971	10.58261652796348
1972	3.1754521921380814
1973	4.0246855954027865
1974	10.055004593771955
1975	-2.157732011314579
1976	8.471908145059274
1977	4.586747176035118
1978	-1.9506290561874522
1979	5.09803824667523
1980	1.9185763470639756
1981	-6.794995315888457
1982	-3.298625058138029
1983	-6.36363630666834
1984	0.5082161042361406
1985	5.399324036226716
1986	1.3601130372471886
1987	1.404582484826605
1988	4.725373353289626
1989	1.7152513241347265
1990	5.7738278776513
1991	1.0093646236121572
1992	2.483662615373291
1993	-1.317609108798365
1994	-0.3234808547913559
1995	1.9191126997490642
1996	4.64980876046684
1997	4.447027153200352
1998	3.609311836936868
1999	1.5450241455861686
2000	3.8597602632723778
2001	5.209094154624765
2002	9.927427148587782
2003	5.532966564521132
2004	7.9926986039562
2005	5.828940032389809
2006	5.374761558484124
2007	5.522718727477894
2008	6.281465307514679
2009	6.282102397925996
2010	6.970600618674155
2011	4.849289011208597
2012	5.135432217698295
2013	6.106610282186082
2014	5.925582819540239
2015	2.8139790074617395
2016	0.14148861769697874
2017	2.2849613704027547
2018	2.842645002732695
2019	3.222028518164535
2020	-1.0044173937037755
2021	3.994854397306355
2022	3.784485677876063
2023	3.3427755940080033