Year	annual %
1961	7.6137671121244725
1962	7.679590979041348
1963	7.717067640766887
1964	7.747813438678232
1965	7.759072839864163
1966	7.775013226304638
1967	7.76577340334679
1968	7.759986631923613
1969	7.737957744448128
1970	7.7192280826450865
1971	7.694739002849493
1972	7.696008973776988
1973	7.655737025570811
1974	7.632826575956515
1975	7.610176317114294
1976	7.612533674598808
1977	7.585002124670885
1978	7.571873762205087
1979	6.895858015076886
1980	5.13936757287672
1981	5.193263865872493
1982	5.2277201057723
1983	5.23148358361917
1984	5.232994928051586
1985	5.236096215936933
1986	5.253498759726863
1987	5.260978819027281
1988	5.266769620309747
1989	5.2517797889124935
1990	5.254337152735634
1991	5.247772931407732
1992	4.696913910996194
1993	5.309629916951141
1994	4.5928773474331885
1995	2.906896395374874
1996	3.416917812824628
1997	3.7531740361628416
1998	3.8765328495821585
1999	3.8920124626085606
2000	3.8714875150126713
2001	3.836005417094604
2002	3.995134475105485
2003	4.286991142813737
2004	4.290690658758495
2005	4.4282809072825575
2006	4.300155415863283
2007	4.107927355999326
2008	4.169825570360806
2009	4.150706926991417
2010	4.132534277967896
2011	4.116116322220506
2012	4.093598596709716
2013	4.064773851906322
2014	4.093172284931905
2015	4.115683614554869
2016	4.11168025684283
2017	4.10551317806747
2018	4.078861380956647
2019	4.040767534233892
2020	3.98001560643625
2021	3.903600912176835
2022	3.8431125398082875
2023	3.7962529727345697