Year	annual %
1961	1.7748585617943573
1962	1.783352206672026
1963	1.78938703393647
1964	1.8007415902225217
1965	1.8346965887108502
1966	1.850696133620649
1967	1.8600645331193755
1968	1.8705455205331116
1969	1.8516428197139512
1970	1.8234746344482065
1971	1.7856495188435253
1972	1.745754327029739
1973	1.7361048093688929
1974	1.978123721770649
1975	1.9595368979912584
1976	1.9341810694545682
1977	1.9506688574511895
1978	1.9668388387416431
1979	1.9441586924206056
1980	1.9286490226276325
1981	1.8951630516622866
1982	1.8228012769456121
1983	1.8785886043870437
1984	1.831151217247625
1985	1.7515624026410752
1986	1.6307168323292016
1987	1.5153039693178334
1988	1.4187217927808518
1989	1.3548394548361318
1990	1.300757809403266
1991	1.2040814611819828
1992	1.1256805253283735
1993	1.0892616014259857
1994	1.0660267372723595
1995	1.0339310638995574
1996	1.0161977498936048
1997	1.0124557546939392
1998	0.9833704908674775
1999	0.9277033975406566
2000	0.8476222500128652
2001	0.7898347450898235
2002	0.754623231367475
2003	0.6971117340348627
2004	0.622962149776915
2005	0.5543438519702736
2006	0.5009360274318208
2007	0.47987283801877934
2008	0.3215637413247563
2009	0.32260453069568573
2010	0.49563753442157693
2011	0.5461706246837927
2012	0.5775608894209704
2013	0.5825208364686779
2014	0.5598946323232511
2015	0.5064131584080057
2016	0.47026382295886476
2017	0.4163543880636913
2018	0.3501735154957118
2019	0.3139704742788801
2020	0.3006525582337911
2021	0.252443777153596
2022	0.2338283305993918
2023	0.2321385150713319