Year	annual % growth
1971	3.3537755344975437
1972	5.375750263702145
1973	5.625871263389186
1974	-2.3095576877213517
1975	0.27645654787853857
1976	4.683049559539398
1977	3.335106543303155
1978	4.7801976425553505
1979	1.4918586612336497
1980	-0.925396814177688
1981	1.736002910183302
1982	1.2488071717956757
1983	2.6783687439685337
1984	5.182199645809433
1985	3.841009656618226
1986	4.475402752400058
1987	3.7245481105740055
1988	5.515928618594359
1989	3.09575489117897
1990	2.5297599914025426
1991	1.3279864379505852
1992	2.1185012679001147
1993	0.42834362928758196
1994	3.4423186072016136
1995	3.034691099759712
1996	3.471644935199251
1997	3.8289229910742506
1998	3.4895567172423796
1999	3.3740898470804694
2000	3.812286127424059
2001	1.6955781692525846
2002	1.3845159497036974
2003	1.9569354643882946
2004	3.638182560483557
2005	2.6442470510672678
2006	3.4627284900919904
2007	2.0528031124739528
2008	-1.7397225599002724
2009	-3.1866854829873006
2010	4.123296436281976
2011	1.7971149812199911
2012	1.9000366727705398
2013	1.3933549383331183
2014	2.483148125949782
2015	2.6471758710158184
2016	1.5528949925602547
2017	2.743777502009493
2018	2.111580176010392
2019	1.5959993581604408
2020	-4.8830257017191485
2021	4.6474141024523306