Year	annual %
1961	1.8250439955817648
1962	1.5495145945351185
1963	1.4346473758169807
1964	1.2190557427899318
1965	1.1053466193489543
1966	1.0311347160230795
1967	-0.13165853068420272
1968	-0.6053641187789413
1969	-0.8075963549287487
1970	-1.0482270328175507
1971	-0.6895794438809842
1972	-0.6336216598575166
1973	-0.8205157917426172
1974	-0.9617576739816354
1975	-1.0775021817990695
1976	-1.7016015636029942
1977	-1.9978388688769346
1978	-2.168869023289611
1979	-2.292445149209024
1980	-2.380936812016035
1981	-2.415669312499287
1982	-2.5123919458836066
1983	-2.697847733735028
1984	-3.054293821622257
1985	-3.4019173949895287
1986	-4.274964610722302
1987	-4.835090768532241
1988	-5.004772482988993
1989	-5.135024576871479
1990	-5.297482685590741
1991	-3.418556321226037
1992	-2.4077778119723305
1993	-2.4556552643862624
1994	-2.510315912874179
1995	-2.546491794123323
1996	-1.010212956051417
1997	-0.20762618106606787
1998	-0.42237193817804247
1999	-0.4418301142231699
2000	-0.3200686078471264
2001	-0.8104754095071619
2002	-1.2278871388372647
2003	-1.2897080485168728
2004	-1.429202479875007
2005	-1.6099514192998499
2006	-0.4606184729270062
2007	-0.053928913743979685
2008	0.20249655019394303
2009	-0.04527394160198011
2010	-0.05933587219548158
2011	0.8409093220551327
2012	0.9232157836312267
2013	0.8511577980955205
2014	1.0225116677412753
2015	0.9255559079113925
2016	0.7881210269514615
2017	0.6004467375769356
2018	0.6711137118037204
2019	0.5041541173666335
2020	0.2239933268881094
2021	-0.1287483618218518
2022	-0.25746366809227716
2023	-0.07878360528611368