Year	annual %
1961	1.573984863202753
1962	1.612658226180173
1963	1.6136916362053881
1964	1.6302336843074414
1965	1.5981910332284457
1966	1.5831177176485625
1967	1.5819490629979356
1968	1.611270771129611
1969	1.6088181485621789
1970	1.622648125338074
1971	1.6172110320997746
1972	1.6302659943196574
1973	1.679069387073298
1974	1.8230083545228268
1975	1.859267242082268
1976	1.909745214386831
1977	1.8735225113985337
1978	1.8986191772722094
1979	1.9564549084787757
1980	1.7041308720330761
1981	1.438576822399412
1982	1.6129439407918937
1983	1.6583637586678748
1984	1.6297350291864205
1985	1.644957573227515
1986	1.5444077543075565
1987	1.508726823549253
1988	1.4914563582239566
1989	1.6387643134154928
1990	1.8764762245217241
1991	1.841225632290616
1992	2.131313266583163
1993	2.297537855206542
1994	2.528601278735792
1995	2.4247309284890974
1996	1.975042108024553
1997	1.8725828678491325
1998	1.9426453105625825
1999	2.0109636649951312
2000	1.927738701307888
2001	1.7880634625283136
2002	2.0402165590577113
2003	2.105210924012212
2004	1.9785021402562109
2005	1.9572611582206605
2006	1.9740672928819833
2007	1.9830270393556049
2008	1.8304586003025776
2009	1.8985488417403502
2010	1.8811926899150393
2011	1.9282427145321748
2012	1.9414984587170494
2013	1.8556211331143544
2014	1.7461996166006912
2015	1.6125346862756516
2016	1.610996235759174
2017	1.6048486653442922
2018	1.5992515393367484
2019	1.6297831792396238
2020	1.6207171724507106
2021	1.5365976209761953
2022	1.2077923882929156
2023	1.5066080018746817