Year	annual % growth
1961	0
1962	-65.51724086318467
1963	64.99998866055651
1964	3.030307352908295
1965	0
1966	8.57908874960593
1967	2.9629655263206445
1968	13.429261729824788
1969	9.090902840111738
1970	3.8759748839932655
1971	-25.932837095936662
1972	38.539036234355365
1973	5.454546519166286
1974	-6.034481657471957
1975	0.5504574301527612
1976	3.467151895167447
1977	-0.5290991403475829
1978	6.028368020086276
1979	7.190637631397038
1980	-12.948516753224197
1981	0.2999989231509801
1982	10.199996985863649
1983	6.200004181545822
1984	5.700000535790537
1985	2.5999975505690287
1986	-0.29999692659364996
1987	5.999993564165067
1988	0.39999860951154176
1989	8.000002154183122
1990	3.4000002289653537
1991	-0.8999922541833314
1992	3.899991697266401
1993	-1.899993132354524
1994	-3.40000234882622
1995	6.299997135883558
1996	7.500001871985447
1997	6.300003645577476
1998	1.699993238365451
1999	6.0050751151052
2000	-5.341663553638014
2001	6.400000000449381
2002	5.699999999999974
2003	7.5
2004	3.19999999999996
2005	5.900000000000034
2006	-1.8000000000000398
2007	-0.199999999999946
2008	-2.0999999999999233
2009	-9.60000000000008
2010	-0.5999999999998948
2011	-2.700000000000003
2012	-3.6999999999999744
2013	-5.700000000000088
2014	0.20000000000004547
2015	0.4999999999999005
2016	6.900000000000091
2017	-4.300000000000054
2018	-3.4000000000000625
2019	-5.699999999999932
2020	-12.200000000000003
2021	11.5
2022	0.20000000000000284
2023	3.099999999999909