Year	annual %
1961	1.3600723374910928
1962	1.1415314943562118
1963	0.9750523743212638
1964	0.8799674190524902
1965	0.8345235724461059
1966	0.749537010737133
1967	0.6601917351975368
1968	0.5571389922172238
1969	0.45885060104772146
1970	0.34658890338956555
1971	-0.08270412307289605
1972	-0.07663892712757692
1973	-1.0388662922336274
1974	-0.8433091318251487
1975	-0.4384598317824099
1976	-0.8225829959387856
1977	-0.8325966490480119
1978	0.3599475114415099
1979	0.8895137867576046
1980	0.9441282118784579
1981	1.2410186576834217
1982	0.6209099959234471
1983	-0.09197094366676734
1984	0.6206927022369977
1985	0.8407874575079052
1986	0.6537644735875796
1987	4.273601998691345
1988	0.4020105916665631
1989	0.5914556436383487
1990	0.4519428410791208
1991	1.2597216000826033
1992	0.3494503213643784
1993	1.9401448712421696
1994	2.486950715666515
1995	1.254941319997094
1996	1.2185525710051874
1997	0.8894248885833601
1998	1.6361696950094355
1999	1.6098295732427135
2000	0.49858008252311936
2001	-0.343754230643887
2002	2.5911503356186882
2003	-1.6350607550373277
2004	-0.9136791719326182
2005	-0.11979337078585119
2006	1.4601332799773172
2007	-0.15023338252396673
2008	1.5359707155405253
2009	-0.3501182793146934
2010	2.0085789846505997
2011	-3.453559661529955
2012	0.11113719176547392
2013	0.9360442759563672
2014	0.5997531203948682
2015	1.268056360935897
2016	0.36654210150611877
2017	0.2460025840862399
2018	-0.03340172765701216
2019	-0.10504955006880325
2020	-0.14821192233098526
2021	-0.20355144305591946
2023	-1.110932118685822