Year	annual %
1961	29.759155394259317
1962	5.161454360539029
1963	19.17311411992263
1964	26.47595861229458
1965	16.74687199230029
1966	7.941742236878263
1967	31.60641547861507
1968	-2.2042750749588937
1969	17.266172819970134
1970	13.928598537560408
1971	12.834976755204169
1972	23.61010877694821
1973	28.985876470869226
1974	20.896548034943482
1975	26.231092837401803
1976	23.35495804482409
1977	31.478571069468337
1978	30.496591853699083
1979	24.199903941335418
1980	34.63761589757214
1981	19.450162657991573
1982	5.67669323992405
1983	16.74150657565168
1984	16.808745485988144
1985	20.801689313745058
1986	27.374102722681588
1987	35.00334243441983
1988	27.110143132849053
1989	58.856077736561296
1990	53.907240883737714
1991	49.75489893608998
1992	37.1287708911513
1993	27.92998099356292
1994	24.23035328798754
1995	0.5283674077298226
1996	9.808937777820905
1997	5.213669078856915
1998	7.620379985866059
1999	12.85169050952544
2000	2.8406299809768583
2001	39.569727211794884
2002	1.4622674345092517
2003	10.922402220988237
2004	15.098231324587037
2005	11.072156471432084
2006	10.709472723582435
2007	29.92905781350456
2008	34.58446534462756
2009	21.47624197167651
2010	18.537810749928852
2011	16.094508589551964
2012	11.758337356391529
2013	20.937182252562884
2014	14.999512669633337
2017	8.400674862377148
2018	8.059109370653058
2019	9.796897335587303
2020	19.22235702470615
2021	8.308153991536004
2022	4.122458601483093
2023	8.70633273962142