Year	annual %
1961	2.19488337445001
1962	2.16885287061227
1963	2.13339665386579
1964	2.12759228310479
1965	2.12724252738267
1966	2.06107445284486
1967	1.99941045126724
1968	1.95180853037603
1969	1.91346804963288
1970	0.430483163865176
1971	-0.182038654360275
1972	1.03940639008268
1973	1.26403354721233
1974	0.886959597439525
1975	-2.71963851984927
1976	-6.45868581812627
1977	-4.3242843772044
1978	-1.31659984772815
1979	1.50864415416939
1980	2.40243043546257
1981	2.63499001878217
1982	3.93186257215211
1983	3.88538850721037
1984	3.59541435717507
1985	3.3385758634098
1986	3.79402131735402
1987	4.0202603714537
1988	3.62214017019268
1989	3.57681049562267
1990	3.8888910533693
1991	3.83702258012232
1992	4.83668118364296
1993	5.26462795865572
1994	3.76294227795416
1995	2.62750839404899
1996	2.38073259847866
1997	2.20186668030533
1998	2.05636127552475
1999	1.95125157344804
2000	1.83064817889597
2001	1.79381433398266
2002	1.79592987916956
2003	1.78257622928652
2004	1.77233194606874
2005	1.75317594902836
2006	1.73026969167735
2007	1.74325561857738
2008	1.65663905731394
2009	1.50789194873236
2010	1.45722988351436
2011	1.4538734073168
2012	1.44928419333369
2013	1.43049971596447
2014	1.3977751944463
2015	1.34979002036239
2016	1.33408515743887
2017	1.3104826630319
2018	1.22144565921597
2019	1.13244216195679
2020	1.16005769739725
2021	1.16513584860257
2022	1.07216738142292
2023	1.04996511061926