Year	annual % growth
1971	0.933337708395058
1972	2.3854773872799058
1973	3.7471939220217223
1974	0.07378830549808413
1975	4.889972103124364
1976	0.8483140388902513
1977	-3.536604480121099
1978	0.6097017928144481
1979	3.0811893249698556
1980	1.1100510421997711
1981	0.089528738089939
1982	-0.5194533625808191
1983	1.0232633037529553
1984	5.35562377822589
1985	1.731283738400009
1986	5.391032670268302
1987	3.243661552035732
1988	2.1599954575989955
1989	1.7357460929657407
1990	-0.375890007673334
1991	-0.7402341575045597
1992	-2.6528377329168364
1993	-4.493584008985479
1994	6.7795198036698
1995	5.851185391120424
1996	0.6707317349275996
1997	2.4429668530163298
1998	4.340822025736088
1999	4.462200569592056
2000	3.8006915559517296
2001	0.2093528268007958
2002	1.2245469876275763
2003	4.056120987533845
2004	2.7780871125583815
2005	2.960884291449716
2006	6.468521491476693
2007	4.543119737806478
2008	-0.8209458062999886
2009	-6.553991908346688
2010	6.713716048164088
2011	2.193637384964191
2012	-0.512824703393008
2013	1.1732814965221792
2014	2.6258983001690126
2015	3.55311681333383
2016	1.8518370527334014
2017	3.3306496655917357
2018	1.2943436462788327
2019	3.4693025361332417
2020	-2.0076581176586785
2021	4.682452786524237