Year	annual %
1961	2.8508604842813217
1962	2.805476311645696
1963	2.543135312578563
1964	2.523333213816905
1965	2.5083262856802553
1966	2.4892649088835777
1967	2.471091444636671
1968	2.4633506785985424
1969	2.490479511635894
1970	2.517214568745417
1971	2.439925154520307
1972	2.493249017911497
1973	2.567652616868903
1974	2.6351663310575866
1975	2.637430959325812
1976	2.4847916151111424
1977	1.9675877297239
1978	0.8489575350708916
1979	0.9648549977528138
1980	5.087286192955835
1981	5.598274783570568
1982	3.189536190945293
1983	2.963716135209464
1984	2.658950487020352
1985	2.5122142422798586
1986	2.379881478058372
1987	2.2679335200428903
1988	2.109361594976138
1989	1.853137705046893
1990	1.6470701779848467
1991	1.5142473059974937
1992	1.42013238015576
1993	0.7948370972741987
1994	0.01453957825981552
1995	0.6598040467830548
1996	1.0732942088034179
1997	1.0405965645202429
1998	1.0212931493225985
1999	0.834783914160819
2000	0.38543346686779323
2001	0.018762129353916183
2002	-0.015841077042694496
2003	0.919866734676953
2004	0.9838074081428758
2005	0.8035035119253875
2006	1.1400841096721193
2007	1.245699594024466
2008	1.0740270247128842
2009	1.2998162151172035
2010	1.5264650793630976
2011	1.7089092201252516
2012	2.0921523801923767
2013	2.430909685785158
2014	2.4138678013617474
2015	2.31244985449433
2016	2.213346039709713
2017	2.1307273839481096
2018	2.061844399016071
2019	1.98778043311765
2020	1.9838909728951768
2021	1.9556513082657334
2022	1.8880433268433503
2023	1.9104777482920579