Year	annual %
1961	2.1988652233216612
1962	2.204786558985859
1963	2.201696534394614
1964	2.181994040459273
1965	2.10211306513159
1966	2.025047754351064
1967	1.9951076458433192
1968	1.9375076541002727
1969	1.884871356140664
1970	1.8261157114662439
1971	1.9214502496614898
1972	1.7164565939939251
1973	1.6537866325979422
1974	1.612113491592936
1975	1.5454967773153072
1976	1.3700030950960098
1977	1.3447090070783076
1978	1.3530522849088555
1979	1.3482286488730466
1980	1.3169560749125395
1981	1.3407036829432144
1982	1.261464464976683
1983	1.2029971426049855
1984	1.1462236876878364
1985	1.14317917460383
1986	1.1578433397217935
1987	1.1824466767498762
1988	1.1861311313629272
1989	1.1948578598151016
1990	1.272822275674372
1991	1.3837243375585615
1992	1.3185822399533151
1993	1.2713217877581968
1994	1.2173809418026877
1995	1.1826520439604025
1996	1.1306424762397
1997	1.1093451916916166
1998	1.0736585033219086
1999	1.0688353272355613
2000	1.0453164800406682
2001	1.2206042440210467
2002	1.291408433729302
2003	1.2475046951672368
2004	1.2225560530589235
2005	1.186437968364416
2006	1.1654001299442314
2007	1.1436569728586932
2008	1.155359217447824
2009	1.075719257800543
2010	1.0246013650710921
2011	0.8015003128406022
2012	0.8610330848658094
2013	0.8693100996447924
2014	0.8865645511369564
2015	0.8728921208088707
2016	0.8890904735985146
2017	0.8586965063615253
2018	0.8497676856345606
2019	0.7956359383529161
2020	0.8148991206166016
2021	0.44345614187955107
2022	0.680715712948583
2023	0.8158536328452044