Year	annual % growth
1961	12.313358554154604
1962	11.486306833934833
1963	-3.068606408561365
1964	2.8787008884216334
1965	13.82334184400014
1966	17.2223000416418
1967	-4.588635961691878
1968	-21.654455504468146
1969	5.411238111636436
1970	8.848953588498148
1971	14.935562525759224
1972	-5.8003515362554054
1973	47.90245785802915
1974	33.45369121328963
1975	-1.97868109543613
1976	-13.29231792441918
1977	-12.188854373012418
1978	-7.219917013255753
1979	16.726296962439008
1980	36.761443840550186
1981	20.04361305596379
1982	-3.7733304668555547
1983	-29.328412551730693
1984	-3.599948061779088
1985	-14.95104261734987
1986	20.362305561862996
1987	15.893713850851213
1988	-15.489402712777974
1989	-12.889551758453962
1990	0.8428446185468204
1991	1.8710515848248974
1992	1.4892646044968387
1993	11.528070647153783
1994	36.6154845171296
1995	21.366672684600104
1996	-2.8412049088880593
1997	15.254280537906055
1998	-1.1778510859698486
1999	-11.05634591688137
2000	-5.153652392947109
2001	-8.105380570457328
2002	0.491301080862371
2003	5.616588059358094
2004	7.36555479918313
2005	11.123510017752977
2006	18.869819244111724
2007	22.67106981030642
2008	27.818819257497026
2009	-3.404109421301399
2010	21.87333620667799
2011	9.929166536649305
2012	14.889248441151693
2013	5.378717376444328
2014	-2.0116604404707914
2015	-7.159036528951987
2016	-4.464623208824435
2017	1.2876887246306552
2018	4.755013805165163
2019	2.8450358066019845
2020	-15.995616059067842
2021	32.66399191689311
2022	0.829642336899866
2023	-5.735510886543807