Year	annual % growth
1961	52.05409139438473
1962	14.862360422012031
1963	18.014935769408382
1964	10.779495115856832
1965	21.251110700246898
1966	-16.078293456616407
1967	-0.685426570803358
1968	-4.712026050710577
1969	-7.079445551581188
1970	13.654545478392691
1971	-1.156191180436636
1972	-5.581479023870969
1973	3.856405064983946
1974	-2.5046963328104255
1975	6.859346587440356
1976	15.82521889005497
1977	7.106531276479998
1978	4.343401196674378
1979	2.518924998016942
1980	8.322201119565278
1981	-0.21951114945302663
1982	14.372815736602519
1983	5.336234912055218
1984	5.21373467679534
1985	10.247927836605484
1986	4.797607541077809
1987	4.291846138028561
1988	-1.234575946909274
1989	7.361115443166753
1990	5.137125923026403
1991	3.199175147897094
1992	10.036844221547241
1993	4.3277096914979865
1994	-0.9555165520811357
1995	4.308799012765888
1996	5.230617660499064
1997	-3.8184857850028493
1998	-3.6919684513676003
1999	-4.4987159876428535
2000	5.042171088348681
2001	4.888084566349235
2002	-2.643686250186576
2003	9.311050721327803
2004	9.653237621287246
2005	9.45004912494636
2006	19.160339085679695
2007	3.3886316251620343
2008	3.70612384923173
2009	-4.13552070129991
2010	-7.694496243753605
2011	-8.618931002116895
2012	3.683397545358929
2013	2.4453341284904155
2014	3.3462699225266874
2015	13.660190950513254
2016	9.384679776436798
2017	7.730673852178668
2018	10.293415940195857
2019	-11.063432832449365
2020	-6.6764416450654664
2021	3.6656234473094287
2022	3.270291011557177
2023	-16.32586838622892