Year	annual % growth
1961	-13.636366637203807
1962	-75.00000016637047
1963	136.84210395904276
1964	-15.555554513766126
1965	-7.89473575068736
1966	-5.2631519996321146
1967	-3.174610961063223
1968	18.852461418279347
1969	20.689659723824107
1970	12.57143122160329
1971	-7.614214406581155
1972	16.483507786879017
1973	25.47170166681674
1974	34.96240178606004
1975	16.434544841078363
1976	-4.545452691896287
1977	21.052628665737345
1978	7.867500338034787
1979	-8.445299137462442
1980	3.354297642996926
1981	16.2999942603099
1982	-1.699997271001024
1983	6.200003835315783
1984	2.499996599543209
1985	5.699999912787462
1986	-21.999996969418973
1987	-28.700006317641595
1988	3.400001986073576
1989	16.80000766549783
1990	-9.80000303328535
1991	-17.900001372651843
1992	4.600001999332619
1993	-6.700002116371778
1994	6.09999939922956
1995	2.000005698554702
1996	-13.300005248681273
1997	2.400002937635577
1998	7.300002404538802
1999	1.6960000884170654
2000	9.200390443760938
2001	7.59999999945984
2002	19.799999999999955
2003	5.2000000000000455
2004	11.69999999999989
2005	6.300000000000068
2006	-2.0000000000000284
2007	10.70000000000006
2008	14.69999999999989
2009	10.600000000000051
2010	5.30000000000004
2011	-5.000000000000142
2012	13.500000000000028
2013	9.800000000000125
2014	8.299999999999912
2015	6.899999999999977
2016	-2.999999999999943
2017	-7.300000000000026
2018	-3.999999999999943
2019	-7.100000000000037
2020	-16
2021	-4.5
2022	-0.20000000000000284
2023	19.400000000000063