Year	annual %
1961	4.290394936004658
1962	4.318184874285997
1963	4.305112656349323
1964	4.261350252753346
1965	4.001715906983779
1966	3.9508482880445244
1967	3.9138189846637097
1968	3.850582935049414
1969	3.7407639172670146
1970	3.7668811581939363
1971	3.8296775429074494
1972	3.73106360345484
1973	3.588484479732537
1974	3.4285372571810115
1975	2.9567327882014776
1976	2.8408005151648505
1977	2.85880181101967
1978	2.905062554510724
1979	2.724313507566736
1980	2.5726681302521537
1981	2.5963484974553928
1982	2.535575389171258
1983	2.4938598751976486
1984	2.4438822568775134
1985	2.3385068523995183
1986	2.321905132127641
1987	2.2735496978230003
1988	1.8430372072055348
1989	1.3885020155419325
1990	0.7920580363310198
1991	0.6399940950491961
1992	0.8085372382700869
1993	0.8017178170282949
1994	0.4549531180430595
1995	0.24399125731424787
1996	0.22411914696029933
1997	0.13770454368267798
1998	0.09694033219207868
1999	0.15337348105943202
2000	0.23304985790909555
2001	0.17775887483510416
2002	0.04379026534073286
2003	-0.03105423877083746
2004	-0.02341495557353908
2005	-0.03547595404570487
2006	0.02419536481812437
2007	0.1668057815603581
2008	0.27091578136544325
2009	0.35720360516821087
2010	0.4533281598558536
2011	0.454360841936171
2012	0.5180666800967996
2013	0.6226023577494721
2014	0.7023718559427246
2015	0.7671342359360244
2016	0.7077050425684106
2017	0.4974272194856531
2018	0.37445941037948977
2019	0.36787841302964036
2020	0.13036517444591147
2021	-0.292441093106297
2022	-0.2850017246140922
2023	-0.037888928682357534