Year	annual %
1961	0.6089787336547943
1962	1.4025248210369057
1963	-0.969269479836214
1964	3.140742655893064
1965	7.95093464298624
1966	2.4828767123287605
1967	-3.5982175359765023
1968	3.291134824953673
1969	6.494231828629495
1970	6.831287805712719
1971	3.3592606368879103
1972	14.725371931903865
1973	15.997451187275885
1974	29.64571267531869
1975	24.318648614875897
1976	7.911447213397608
1977	-0.032029765019757406
1978	4.431884634965044
1979	8.141350315862582
1980	17.311704477692103
1981	0.9590900006621155
1982	12.139872886162806
1983	6.816755345527085
1984	3.0074962985539457
1985	8.215254691366212
1986	3.0512977803574586
1987	7.340010367563551
1988	7.32801561467528
1989	2.848296484001736
1990	6.6794693688700875
1991	5.993131638201959
1992	6.306671978034032
1993	7.237345038154231
1994	0.8280380460464016
1995	1.1304145642476016
1996	2.868442299914946
1997	3.2900559949146952
1998	7.447953426752491
1999	6.731820944220871
2000	-4.719873879170592
2001	3.2453962100387628
2002	3.266447482537899
2003	7.702779357317539
2004	2.194008592153722
2005	6.645185981447881
2006	3.746758818814854
2007	3.024456410386378
2008	2.158118816535975
2009	1.3906950207908721
2010	4.2297849990792855
2011	9.391340518590724
2012	3.576513520938107
2013	3.621296542024794
2014	12.505405677961988
2015	2.53089804690228
2016	2.6333266433458107
2017	1.6984575705199347
2018	1.4257180076414784
2019	1.5465490843948402
2020	-1.4825505273925899
2021	-2.5130621743177244
2022	2.4725617202786054
2023	4.400000614890814