Year	annual %
1961	5.740645822743474
1962	1.8419777020646961
1963	-2.2370299843302206
1964	3.5296981484771663
1965	1.081589466650044
1966	2.7913468254111535
1967	1.3804028052958586
1968	10.915178572328443
1969	6.822298248567037
1970	7.554634514606391
1971	7.02399719674149
1972	7.037643207544718
1973	8.103975535211276
1974	7.2342438172607615
1975	5.607476635514018
1976	7.079646017699133
1977	8.264462809917347
1978	6.870229007633583
1979	7.142857142857139
1980	10.000000000000014
1981	7.8787878787878896
1982	2.247191011235955
1983	4.395604395604408
1984	6.84210526315789
1985	2.463054187192128
1986	5.769230769230774
1987	5
1988	5.627705627705623
1989	7.78688524590163
1990	7.224334600760457
1991	6.77581743971632
1992	6.4975065187381915
1993	6.496408118477916
1994	7.539971095642372
1995	8.220007399475818
1996	7.818187077152288
1997	4.6998788540334
1998	-13.126725493152037
1999	0.7911260825616466
2000	4.920067747775761
2001	3.643466447862153
2002	4.499475388896329
2003	4.780369123761091
2004	5.0308739449402395
2005	5.69257130261316
2006	5.5009517853706456
2007	6.345022227618458
2008	6.013703599228307
2009	4.628871183460319
2010	6.223854179826404
2011	6.16978420771008
2012	6.030050653056151
2013	5.557263688910098
2014	5.006668425754995
2015	4.876322300221233
2016	5.033069182801768
2017	5.069785901349164
2018	5.174291539550239
2019	5.019287680462824
2020	-2.065511829341645
2021	3.7028856282775138
2022	5.307419347757644
2023	5.048105770672876