Year	annual %
1961	1.3769785041819975
1962	1.3815325613933382
1963	1.4329352896177998
1964	1.4734174453801576
1965	1.4993204762029464
1966	1.5278640468508882
1967	1.5385964406984216
1968	1.49136609770181
1969	1.3934749053759274
1970	1.3329538832017767
1971	1.3983368469321942
1972	1.601410445023171
1973	1.526747213078838
1974	1.4368080896727755
1975	1.3323446218501538
1976	1.126011490704763
1977	0.8898835142130039
1978	0.7803875806324556
1979	0.7279366405003976
1980	0.6823438874538257
1981	0.851576881369784
1982	0.8829074784118638
1983	1.0008649438644863
1984	0.9976091216941346
1985	1.0031459789848491
1986	1.0410609520305414
1987	1.229330924906374
1988	1.2494289227484618
1989	1.2088499773796733
1990	1.13533921424286
1991	0.8659939446474321
1992	0.5912417380946987
1993	0.4647947373603148
1994	0.3897374209003498
1995	0.33069247953316877
1996	0.4130904999724737
1997	0.4314157104583503
1998	0.43753690962627073
1999	0.3899687595430589
2000	0.31919771743812697
2001	0.4631032187085564
2002	0.6764710021446625
2003	0.704966428221888
2004	0.7145031316625189
2005	0.7266747344678263
2006	0.7176288074003395
2007	0.7229004218639478
2008	0.722398333126666
2009	0.7125643601919127
2010	0.6853438924819462
2011	0.5088741103320115
2012	0.5538605485700714
2013	0.7833532793785583
2014	0.7430475494153259
2015	0.8394291701680894
2016	0.9855448458410175
2017	0.931254584601634
2018	1.2303534061472792
2019	1.2530102060831696
2020	0.9534776943880198
2021	0.8429549792511654
2022	0.710133425768869
2023	0.6065912488088782