Year	annual %
1961	2.150461784288521
1962	2.139115575950064
1963	2.095162497460129
1964	1.9988606319298614
1965	1.8791286315224986
1966	1.7137244107917975
1967	1.5425133096481403
1968	1.428455335424453
1969	1.3592847230261336
1970	1.320528724325349
1971	1.1239395778027075
1972	1.0573665283771336
1973	1.0851462093260735
1974	1.0977445009195543
1975	1.0971734587531574
1976	1.0830673917395595
1977	1.1315959985064568
1978	1.1622142713464485
1979	1.1092705420312494
1980	1.0945938780752478
1981	1.2804368255988832
1982	1.2436145032180186
1983	1.2601487001121723
1984	1.3160670296839805
1985	1.4104156824625012
1986	1.4905800721473856
1987	1.531790700559838
1988	1.5202656963078374
1989	1.4364570994264965
1990	1.3321555182874443
1991	1.246815295841812
1992	0.25043430258532273
1993	0.06150038278838983
1994	-0.00800455465183892
1995	-0.10080025541104054
1996	-0.22834374833067486
1997	-0.3196492568125465
1998	-0.4534795597800044
1999	-0.597823181003437
2000	-0.6518160569556688
2001	0.05339894731576331
2002	-0.034935270707499855
2003	-0.14707043646785994
2004	-0.25737709094289507
2005	-0.355118626838104
2006	-0.46238288888757384
2007	-0.557999782659366
2008	-0.6837639680663096
2009	-0.8219210620087446
2010	-1.0785575554665803
2011	-0.8143162998539167
2012	-0.7556295853967395
2013	-0.8034089932058949
2014	-0.8661004828170296
2015	-0.9370294349814441
2016	-0.999433360865656
2017	-1.0267676346543329
2018	-1.112505783365582
2019	-1.170073858881501
2020	-1.1924852266492916
2021	-1.25487382891704
2022	-1.2704831214807848
2023	-1.2460008287085154