Year	annual %
1961	4.546393036601714
1962	10.278713498899677
1963	9.428229320008327
1964	0.13103989108526548
1965	6.919761817610407
1966	-0.3824971992202535
1967	0.1228686718162777
1968	0.38349466307356295
1969	-5.48594581331632
1970	3.0557789220214744
1971	5.679320640483752
1972	-5.166272302769229
1973	-17.04758357192098
1974	8.77523804936311
1975	-2.7931934359911423
1976	0.6782034023079149
1977	7.7645811193599314
1978	13.472612330141061
1979	7.146996070244754
1980	-2.455036128575074
1981	-0.1776660712260565
1982	2.174460219733291
1983	-3.8636279071415345
1984	-16.81983511366373
1985	7.718127450211881
1986	6.352137302914684
1987	0.08828135972333939
1988	6.871150136713695
1989	0.957045972548471
1990	-1.3084782848195857
1991	-0.43948910045781986
1992	2.0007523614285105
1993	0.32165547443278797
1994	1.8547787910116824
1995	2.457244122315501
1996	0.10053050428140864
1997	1.527475710506664
1998	9.972614956424437
1999	-0.2195625179166001
2000	-1.2084777410057512
2001	7.268134902132346
2002	4.918470575946216
2003	2.1706103837418027
2004	0.36380157872213204
2005	7.331868842585166
2006	5.93104997350342
2007	3.142724083867307
2008	7.731414227773371
2009	1.9626009069464487
2010	8.578166742622528
2011	2.35775693603874
2012	10.54894457634461
2013	5.315130633947263
2014	6.642136654956033
2015	4.392648832072908
2016	5.74089315058157
2017	5.0053607861554354
2018	7.211418027628966
2019	5.939852571235221
2020	3.5506410943689133
2021	1.3835963619847718
2022	11.900000000027717
2023	2.499999999999986