Year	annual %
1961	3.548583413973404
1962	3.75258754721383
1963	3.6981092070935855
1964	3.608234228700962
1965	3.5726959000112775
1966	3.567706159518777
1967	3.476293232388946
1968	3.4047458677000133
1969	3.3211488497489774
1970	3.1594817883481547
1971	2.819563868624444
1972	2.051104665144688
1973	2.032772158853385
1974	2.032861568859499
1975	2.0336971065137837
1976	2.0678225562858557
1977	2.03916792915922
1978	1.9717932263358675
1979	1.7816099958335725
1980	1.574532833806495
1981	1.5196992688343685
1982	1.219801754070783
1983	1.2399683091037297
1984	1.1895969103047468
1985	1.1631404655955018
1986	1.1327431556225926
1987	1.0894600250347102
1988	1.0254277818918887
1989	0.9440706684079725
1990	0.8999349247077596
1991	-1.241523501242988
1992	-1.995069437222266
1993	0.9819992365298491
1994	1.5574012435245732
1995	-0.24728178519255314
1996	-0.9325404281442856
1997	-0.050788402191343035
1998	0.37185065671676326
1999	0.0012496896604096842
2000	-0.5550214908386226
2001	-3.447913598847315
2002	0.37157501486611516
2003	0.3420493329160276
2004	0.3386523853056382
2005	0.4384977745608092
2006	0.33237384710558326
2007	0.28602871368151545
2008	0.2950333564890866
2009	0.20097993435686107
2010	0.07824453948941187
2011	-0.042936131160119025
2012	0.026388694645316943
2013	0.08114908899402706
2014	-0.018561845168200187
2015	-0.41008198218614905
2016	-0.25773122683297794
2017	-0.7336383477736469
2018	-0.40058769769130514
2019	-0.03746560683971302
2020	0.10862019715488201
2021	-3.694001876164842
2022	-0.016080919578165268
2023	0.546280476222869