Year	annual %
1961	-0.9222705672766109
1962	-1.2949118148814756
1963	-1.4063548790601046
1964	-1.2120719274177283
1965	-1.2397219714743077
1966	-1.4895818162283831
1967	-1.6108405409857127
1968	-1.7754993765100955
1969	-1.8859785491651335
1970	-2.0862717018817847
1971	-2.0015907744576396
1972	-1.790047485098255
1973	-1.8636062163505513
1974	-1.8766861255374232
1975	-1.8970522923627169
1976	-2.019331430794419
1977	-3.7659154815082743
1978	-3.8133540991337105
1979	-3.809081874785695
1980	-3.8168839677243285
1981	-3.3933506046659625
1982	-2.3383282133979866
1983	-2.326460447213734
1984	-2.327290732661127
1985	-2.2775155951637855
1986	-2.2757643666809857
1987	-2.255195722572562
1988	-1.9997347642152579
1989	-1.9821783191646538
1990	-2.0208799490434117
1991	-1.9741208815583298
1992	-1.9096102084350615
1993	-1.9500164420558255
1994	-2.0280352102015677
1995	-2.151708086922479
1996	-2.12740085039271
1997	-2.103371820276328
1998	-2.1550909660760493
1999	-2.0945538847892515
2000	-1.9621864344776676
2001	-1.6612889927774381
2002	-1.5254078765415027
2003	-1.5950045820613596
2004	-1.5846404467959854
2005	-1.4700514600100607
2006	-1.3239053249067891
2007	-1.2892233835823985
2008	-1.2342415252246806
2009	-1.178154070994288
2010	-1.109332980435419
2011	-0.7199494666671237
2012	-1.3985521400930307
2013	-1.543547112318964
2014	-1.5660997244608665
2015	-1.4246743607711845
2016	-1.5389418563045847
2017	-1.6539267777966604
2018	-1.5257721603986312
2019	-1.4809662596940434
2020	-1.5275879844188838
2021	-1.5865733815594099
2022	-1.0741915020422836
2023	-0.8047603114767531