Year	annual %
1961	22.280534351145036
1962	4.057744830277019
1963	25.646794150731157
1964	24.9179349447926
1965	25.513616817964646
1966	5.805100875523411
1967	8.220903040115129
1968	19.34840425531915
1969	28.467966573816156
1970	-0.11925411968777104
1971	19.14685770107457
1972	16.871640703288694
1973	28.131576896094785
1974	17.100620513444458
1975	12.203231336692816
1976	28.456338549865727
1977	21.060409457900807
1978	19.605799863042247
1979	16.05595937468884
1980	17.521770837801895
1981	19.004946067784857
1982	20.958836881172935
1983	20.136934195511603
1984	13.20077676460655
1985	20.395301137423083
1986	19.343947466237147
1987	22.42142282436606
1988	22.183059399695768
1989	20.95096389096146
1990	18.743208008005137
1991	22.723744340508816
1992	20.502319628859382
1993	25.01884118059144
1994	17.984663037724875
1995	15.428764488654853
1996	12.201936110744576
1997	29.543332321090844
1998	11.181374907994051
1999	21.68036309078696
2000	18.84551516410901
2001	16.775265384068078
2002	2.6591669801511775
2003	10.217592897865767
2004	13.085077097159662
2005	9.743586536154401
2006	16.985020267835253
2007	18.528592715821596
2008	38.841264640850916
2009	29.619835830010853
2010	9.589222667151917
2011	18.670188560679573
2012	14.856498252650974
2013	21.658009779027008
2014	16.140326688032985
2015	24.435061331652815
2016	17.363536337378463
2017	11.9678651564038
2018	19.755497712029488
2019	13.813433588746612
2020	22.113914393273575
2021	14.691631610879414
2022	7.642884471453741
2023	14.283478715449144