Year	annual %
1960	2.3501614137705
1961	2.05069731278698
1962	4.69114360740471
1963	7.45471822539103
1964	5.91232253218587
1965	4.51926830743458
1966	2.34658893413318
1967	3.73333832073822
1968	1.27731335390797
1969	2.65725273386972
1970	4.96831987329335
1971	4.79166438333786
1972	5.74950393730007
1973	10.7986174547602
1974	19.1597695854699
1975	16.9505025668306
1976	16.6141664725788
1977	17.13004878665
1978	12.0940138425074
1979	14.7985735661484
1980	21.0641682770745
1981	17.9692987519672
1982	16.4804146202214
1983	14.646576674877
1984	10.7944960076811
1985	9.20599144253118
1986	5.82354691862017
1987	4.74728490389789
1988	5.05824747667119
1989	6.25983137956977
1990	6.456609061464
1991	6.24999929790291
1992	5.2705899859293
1993	4.62673468331298
1994	4.05184218065716
1995	5.23542258044301
1996	4.0069766898104
1997	2.04310779750136
1998	1.95508557719381
1999	1.66345995007714
2000	2.53768532095002
2001	2.78516542713554
2002	2.46532319171165
2003	2.6725555277285
2004	2.20673661423657
2005	1.9852929852798
2006	2.09084391012754
2007	1.82974112202403
2008	3.34783258401022
2009	0.774768131387381
2010	1.52551602118248
2011	2.78063272879323
2012	3.04136333226775
2013	1.21999342274306
2014	0.241047429826756
2015	0.0387903996579733
2016	-0.09401665691575
2017	1.22653316645812
2018	1.13748763600391
2019	0.611246943765304
2020	-0.13770757391651
2021	1.87378325762481
2022	8.20128991161718
2023	5.62219442195901