Year	annual %
1961	1.842049119572593
1962	2.7461728515498294
1963	3.0707366149781166
1964	1.155545899862929
1965	2.0565967895694683
1966	2.295029933625443
1967	2.2754150072353525
1968	1.9017270761896015
1969	1.3084785103030896
1970	0.32913944283077967
1971	0.7279748724474047
1972	0.7026394410844432
1973	3.157254113360807
1974	2.397959233281057
1975	2.311804878590479
1976	2.390342837113309
1977	2.5104452956427963
1978	2.360527823395813
1979	2.039806994260701
1980	1.7766441262252073
1981	0.05255945291975195
1982	0.9425053933889131
1983	-1.5495392609351768
1984	-1.2136030236187025
1985	-2.900869811830816
1986	0.7237339218823706
1987	1.1100696052449734
1988	3.1861276156520404
1989	2.1690408893098265
1990	2.7737184431820765
1991	0.09105461023115424
1992	0.8314598602695185
1993	0.13903149781853585
1994	0.5312070694569115
1995	0.6059287761812442
1996	1.3406100685727722
1997	1.78783969481006
1998	2.7860887260504654
1999	1.6309510885052845
2000	2.8907582270838645
2001	1.7650897715184186
2002	2.954312771237838
2003	3.2739914760226156
2004	3.8207090946058315
2005	2.4421208143440083
2006	2.237962569608314
2007	2.867348114323562
2008	1.9281750816504655
2009	0.662077689537881
2010	1.7401919053540666
2011	3.6882090270636354
2012	4.9530422222257044
2013	4.0488559117349325
2014	4.087841882457852
2015	4.681886942059094
2016	5.265720315998195
2017	4.1077670470139935
2018	3.9821468971111216
2019	4.129044786646958
2020	-9.441627368595917
2021	2.665567786689806
2022	6.715462409468103
2023	3.9646917864687623