Year	annual %
1961	2.221732443379567
1962	2.658666030560903
1963	2.5741630808001537
1964	2.652538907210609
1965	2.6980417958725846
1966	2.5993987991865506
1967	2.765785349815438
1968	2.805542018743857
1969	2.4397062698463907
1970	2.528923982327384
1971	2.424189568329615
1972	2.1354787272316926
1973	2.111097325024069
1974	2.080038566597763
1975	2.0475664526977084
1976	2.002489753534741
1977	1.953211547892655
1978	1.8673165344996385
1979	1.7654436914013878
1980	1.6680868985889064
1981	1.3818004963106874
1982	0.9219311987111471
1983	0.8049791905583831
1984	0.7306944325560396
1985	0.6741170621192334
1986	0.6095632405851963
1987	0.5664727137502044
1988	0.515594549642299
1989	0.4580586673693966
1990	0.40087871221167976
1991	0.48915036602403356
1992	0.5982708551454332
1993	0.6269333097835857
1994	0.5843768236020819
1995	0.5495228751313005
1996	0.5245588124463275
1997	0.525729510167747
1998	0.5203404258050546
1999	0.5117056635878143
2000	0.5534056111767166
2001	0.8002258389688913
2002	1.661162209420899
2003	2.1280671647721205
2004	2.042762099446718
2005	2.0017576170627143
2006	1.9992081028344255
2007	2.157701090347765
2008	1.8984465233298922
2009	1.1853779023685578
2010	0.7566078932748853
2011	0.6493894603154821
2012	0.35558183003649496
2013	-0.03532948576084285
2014	-0.004941594246866403
2015	0.21932548266905613
2016	0.3829717186427246
2017	0.534737452920241
2018	0.7384811672713235
2019	1.021035077598803
2020	0.7921445918164526
2021	0.40975408347136144
2022	1.0671971881135107
2023	1.542198101291567