Year	annual %
1961	2.3894101196890154
1962	2.266564876690794
1963	2.134360066636314
1964	1.9748787994307089
1965	1.640378625053
1966	1.481819483071963
1967	1.3382146042415326
1968	1.1953350698235543
1969	0.9393477381121045
1970	0.6567872021738715
1971	0.40478567298912027
1972	0.2849669305643953
1973	0.3368735634231101
1974	0.34303124023450393
1975	0.8720117602539138
1976	0.8547211237543716
1977	0.9066324657578673
1978	0.9507789408230655
1979	0.7575750857851128
1980	0.5687814386224841
1981	0.6087609171998882
1982	0.6577791793607213
1983	0.7250743058328291
1984	0.7517157485261443
1985	1.4892844605718383
1986	1.725752677704727
1987	1.9582618500910154
1988	1.952006047490809
1989	-1.14492460049514
1990	0.8126350815063851
1991	0.8402514240735623
1992	0.13299128563047782
1993	-0.14902594271736969
1994	-1.2355862429405282
1995	-2.1096693735732455
1996	-1.566254815855159
1997	-1.6251876688795914
1998	-1.778388606755236
1999	-1.0437736218440217
2000	-0.4663431756617644
2001	-0.3364745006174371
2002	-0.1625795342119695
2003	0.16944327521300925
2004	0.5276481707309298
2005	0.7213696703359668
2006	0.8898563768459227
2007	0.9757596196650788
2008	1.7045790129146754
2009	1.813746584740949
2010	1.2466405339340147
2011	1.2622784467518324
2012	1.2391666371226695
2013	1.2696401151869745
2014	1.3048982276872638
2015	1.2911124545856845
2016	1.251368767690684
2017	1.191770710625377
2018	1.0986465890873134
2019	1.026185619174094
2020	0.9896288308931004
2021	1.9414089070488958
2022	1.8838033631196172
2023	0.8906765124999426