Year	annual %
1961	1.41176582428848
1962	0.6766959030745312
1963	0.5678024929082426
1964	2.0083900476431467
1965	3.872159461210174
1966	5.2632411783331605
1967	3.9366597755996082
1968	1.6728090463101353
1969	7.39719907550915
1970	1.965055802231248
1971	5.016691566777197
1972	7.804606320322989
1973	9.46627675078291
1974	18.86525075378968
1975	16.23037964686253
1976	16.274131000002328
1977	26.400050929804934
1978	22.348271321303216
1979	19.43741608136081
1980	20.903033902969256
1981	17.60892118543221
1982	20.690328572340235
1983	24.605260965263255
1984	24.675721000562305
1985	21.73456246190287
1986	20.45112882258971
1987	10.096784773956642
1988	11.165389201192681
1989	10.513804792023066
1990	13.144652234953071
1991	10.086185267802321
1992	11.446031813679653
1993	7.376430044997733
1994	7.2776276311329156
1995	3.4286172299752735
1996	2.3909855109766767
1997	3.8852076349037645
1998	3.825033365078639
1999	3.370527577182685
2000	3.4202687274528216
2001	3.7159828186516677
2002	4.189781687377447
2003	3.427153729622873
2004	2.3996146661088034
2005	3.332903227565282
2006	3.1845426593098125
2007	2.9663454927419792
2008	1.7377242881250652
2009	1.098135863727137
2010	0.6422908691016147
2011	-0.265123394841666
2012	-0.38819636013174375
2013	2.2486548922586564
2014	0.7045963693286694
2015	2.019964428265226
2016	1.716662546871305
2017	1.5119103944032162
2018	1.8129967517080985
2019	1.7494522399929053
2020	2.0034751218244224
2021	1.9005941809454612
2022	4.998410510566998
2023	7.135076309521992