Year	annual % growth
1961	28.885407307698614
1962	13.885499534644666
1963	12.192508791123942
1964	6.482372917444806
1965	-17.726061086125824
1966	0.23910842939247345
1967	-5.724816052664778
1968	0.7188034506026639
1969	-12.223808726282698
1970	-4.670221707037896
1971	-8.979259668180305
1972	-13.928040226122391
1973	3.823381868372053
1974	32.64826032300198
1975	29.305011364779688
1976	5.262384344037102
1977	-0.16725534169286504
1978	-7.9443449548679865
1979	15.66227922450365
1980	32.75636689415663
1981	10.374688444376005
1982	7.454583191703776
1983	8.430953734356692
1984	-9.713502264451932
1985	-23.91890351917965
1986	-24.047706520528422
1987	-7.331436386193104
1988	10.135568168972213
1989	-7.9046091780085135
1990	-1.4357339214854647
1991	3.327762863711186
1992	2.3881372975469475
1993	12.488389615255585
1994	26.969561993500662
1995	-35.97794294506575
1996	40.212725875270024
1997	62.327407096335605
1998	18.54628639201161
1999	13.044477777951613
2000	24.310362594321333
2001	-0.13500277746673817
2002	4.271812286568078
2003	20.944223345776635
2004	38.69662793470158
2005	8.15028311333134
2006	-4.3973069345304765
2007	1.0699996932242044
2008	9.000000297830411
2009	-6.430000816033981
2010	6.772643584888158
2011	-94.70000036862076
2012	-5.999993269249103
2013	24.999988066045347
2014	25.000014320746942
2015	8.601383315254822
2016	27.000005063624428
2017	26.58999683911121
2018	10.928626515700628
2019	13.848259191655927
2020	-8.999998822299787
2021	-0.5000011038560359
2022	8.69999996939579
2023	-36.00000422321374