Year	annual %
1961	-3.9671814671814674
1962	9.076289074278822
1963	16.838239165920697
1964	21.45118584868458
1965	11.861513627845707
1966	21.122905954552994
1967	3.2618966107497434
1968	12.454414046441311
1969	9.554414287988584
1970	11.689926319018735
1971	13.771136415109797
1972	17.468519561709282
1973	13.802453288719343
1974	-1.2036550050376718
1975	21.214920002693834
1976	32.19701780007196
1977	17.94753768964903
1978	19.842471052953073
1979	19.09700492995835
1980	15.697209260855352
1981	11.524676947358039
1982	21.83105209623209
1983	20.909458718544986
1984	4.647626743790405
1985	14.746554796031134
1986	16.07270564226078
1987	16.403528414488633
1988	7.70296260972111
1989	7.400918112589597
1990	11.6436708059216
1991	18.944312882155447
1992	29.300562600717626
1993	18.133447049225925
1994	17.370601978883585
1995	13.809795785807477
1996	20.068561054270738
1997	19.911796794566435
1998	7.859379338331091
1999	4.31422526833217
2000	12.125158220759626
2001	14.4302473934702
2002	17.61644821407013
2003	17.857944318732777
2004	18.89539952160995
2005	16.37287366326338
2006	42.90887402416158
2007	17.438354703299826
2008	6.524702141784647
2009	17.61005693487263
2010	14.565815815849545
2011	12.602621834608135
2012	17.395019920622893
2013	13.315647619693044
2014	11.543714841419447
2015	12.18098004482578
2016	13.616048981419368
2017	9.931321496724795
2018	9.834391659041241
2019	11.673029632160413
2020	15.63270855087012
2021	10.419358063999256
2022	7.411518601355027
2023	16.25306317539006