Year	annual %
1961	2.132657516673362
1962	1.2232985642157246
1963	2.0153316563997734
1964	0.850777996901769
1965	1.742647024177792
1966	3.702392606888772
1967	4.071216516565215
1968	4.237052640119238
1969	3.770263852354404
1970	4.617605148481324
1971	4.823227617866955
1972	6.5749237216982905
1973	12.743183964470518
1974	23.57912414204194
1975	15.06364582385995
1976	1.7735748626281946
1977	5.996415596715465
1978	8.190503299529475
1979	10.123556891144773
1980	11.758155747305423
1981	7.355999412788819
1982	4.71487274431162
1983	5.415090077254376
1984	5.183243101340437
1985	4.450868453416319
1986	4.583562645440779
1987	7.337770192382791
1988	4.498859354586202
1989	5.68893659993266
1990	7.471990399794137
1991	4.8266563646224085
1992	3.9055654365796926
1993	1.9908502989024441
1994	3.190762918327337
1995	3.0463687910141033
1996	2.7484522591507243
1997	1.4936997685117888
1998	2.800181585315613
1999	2.536389911432323
2000	1.4140976756272323
2001	2.0847831653898083
2002	0.9078562366999563
2003	1.1158721672058505
2004	3.7472262139151695
2005	4.676776804926263
2006	4.096370735693625
2007	4.373543659102694
2008	2.5327735243088796
2009	0.3184365322461531
2010	2.1586663019486707
2011	1.6853218819098004
2012	1.092741855665878
2013	1.913552957240185
2014	1.0648202712204835
2015	2.78817037438111
2016	1.201325225273564
2017	2.1715435302071597
2018	0.45617083241312173
2019	2.9611884630726735
2020	-0.8669508602416585
2021	3.0259651587619203
2022	4.30104615816353
2023	4.735828043271326