Year	annual %
1961	2.254690671419793
1962	-0.055172036440072944
1963	-0.15603380787006332
1964	-0.15874295746527378
1965	-0.23255541654892672
1966	-0.3363403262428595
1967	-0.4393433407780087
1968	-0.5469455049669347
1969	-0.5723568289715153
1970	-0.9383622686229377
1971	-1.2055713321254145
1972	-0.9801139020936246
1973	-0.9053006934271493
1974	-0.8917056724819215
1975	-0.9217919439868543
1976	-0.9607291301733103
1977	-1.0011555639578142
1978	-1.0895366472679213
1979	-1.163030815759944
1980	-1.3810056092711478
1981	-0.6731798951468164
1982	-0.20969390752496953
1983	-0.26707393080075364
1984	-0.31635984016695373
1985	-0.33566829889245575
1986	-0.40057649066338835
1987	-0.47138078551801366
1988	-0.5066133592634634
1989	-0.5636648701893658
1990	-0.614384733843475
1991	-0.5889474529088397
1992	0.1734905237704737
1993	0.5202326884911596
1994	0.5347369473364206
1995	0.4330780526475504
1996	0.3519245093431069
1997	0.32239391538162704
1998	0.2739765639526445
1999	0.2417283343603879
2000	0.004070499353318032
2001	-0.02319558403798423
2002	0.3052250523154781
2003	0.2746166426470621
2004	0.3189314635451793
2005	0.3479113743250248
2006	0.3438250721414293
2007	0.36726996681194424
2008	0.4204822062358193
2009	0.4690632166467183
2010	0.701930502858261
2011	0.7119946859210193
2012	0.47687792281631236
2013	0.41320546459854174
2014	0.401876982663192
2015	0.3360339339846186
2016	0.3087629746742907
2017	0.27414819611030744
2018	0.1925724215848723
2019	0.12882310256343787
2020	0.01878027284460844
2021	-0.34220317494334374
2022	-0.47777695103374185
2023	-0.34867304425655626