Year	annual %
1961	4.814692182691843
1962	4.882146957141728
1963	4.900124702076795
1964	4.966222534965354
1965	5.007963548030503
1966	4.853485867317602
1967	4.752325041278894
1968	4.698689824804063
1969	4.7195446936925975
1970	4.7281795822620865
1971	4.616529098599727
1972	4.588820385302313
1973	4.659148941635351
1974	4.5907736156264605
1975	4.652239353941454
1976	5.033432450073107
1977	4.865841796745343
1978	4.198078556704516
1979	4.235834882173023
1980	4.587140268522077
1981	4.855419064090242
1982	4.764084341127429
1983	4.476121785279275
1984	4.459296762887675
1985	4.332010157489648
1986	4.282088985246887
1987	4.037690881555633
1988	3.738848517261701
1989	3.6326996504862876
1990	4.2799540927932895
1991	3.4705418753761705
1992	3.6482424529891375
1993	3.117564977060354
1994	2.907935838266269
1995	2.837017408912871
1996	2.759553945066571
1997	2.762403907352848
1998	2.7573918751566424
1999	2.74044715701163
2000	2.7365401576508077
2001	2.716085824998828
2002	2.511271871117728
2003	2.4603595475761892
2004	2.6033417178359883
2005	2.831133758672294
2006	3.066069745305228
2007	3.1266789465114897
2008	3.1422228289037974
2009	3.0928499816809563
2010	2.8474138934208924
2011	2.4373134592894417
2012	2.4102796445159385
2013	2.652693653948049
2014	2.7087735651527964
2015	2.695858124585598
2016	2.4536306594833377
2017	2.2677682538290185
2018	2.2796452808719607
2019	2.2045851200342526
2020	1.8129875151666681
2021	1.6745447889515646
2022	1.8984981229705795
2023	1.9553767553412058