Year	annual %
1961	6.0100841142034085
1962	6.474534524529091
1963	6.9640280919850435
1964	7.401823032458722
1965	7.590312245133757
1966	7.488830134715217
1967	7.312255719204424
1968	7.152474350237278
1969	7.742235069348978
1970	8.246267662882936
1971	8.364034016650592
1972	8.613360892280006
1973	8.724708595243102
1974	9.246614166078055
1975	10.168120219729694
1976	10.991505663795849
1977	11.334559220005813
1978	10.965337065679286
1979	9.786711146830768
1980	8.119202829686772
1981	6.4536381438776615
1982	5.205627473997261
1983	4.2485505861786566
1984	4.131783647170903
1985	5.021208051595641
1986	5.9958442167309975
1987	6.662671117069534
1988	6.710385668085152
1989	8.00165312435524
1990	10.488085905538536
1991	8.729190141248862
1992	-0.7888606266491127
1993	-1.8783369530007725
1994	2.0452739925237715
1995	1.0405764387681207
1996	2.4207176661389087
1997	3.5864933069716107
1998	4.043065434772159
1999	3.518206833671745
2000	3.163117967312861
2001	3.1722889862762096
2002	3.1013713669933987
2003	2.2263718074158936
2004	1.5324937307550301
2005	1.57304128563813
2006	1.9775664407489224
2007	2.1915911166624698
2008	2.0839234327008187
2009	2.1008208443183864
2010	2.0597122887362107
2011	1.9822739861721845
2012	1.945372617090319
2013	1.921442627796836
2014	1.8871797142870004
2015	1.8544061662997893
2016	1.8187523139981603
2017	1.7996355858057638
2018	1.7837534448211572
2019	1.7534485106330033
2020	1.6822295029185628
2021	1.6012166794398743
2022	1.5817866535168903
2023	1.6019727998482558