Year	annual % growth
1971	8.596385617794681
1972	4.821827783286807
1973	3.403839767000761
1974	0.9382596593140704
1975	9.63122180887946
1976	5.424186500276605
1977	8.616635062051287
1978	6.431152000468316
1979	0.9601234433044965
1980	-3.821946164778467
1981	18.823752207950292
1982	8.379347100836767
1983	4.881768939088943
1984	7.945305363390048
1985	8.869775919529488
1986	-9.098618312513779
1987	-1.724077988347247
1988	3.1430179632097293
1989	3.3778712696763478
1990	-5.5079294534514815
1991	-37.13209050915206
1992	-45.26558214637898
1993	-5.425136817199615
1994	19.16581802569675
1995	11.508006835209557
1996	24.275801621660747
1997	-1.8638661661640015
1998	1.3774652869903719
1999	2.4317899282458484
2000	-0.2214367840565501
2001	-3.7535743246127
2002	-7.301066447908127
2003	12.128677349916302
2004	12.977538875023996
2005	25.767959973567443
2006	20.441955774398394
2007	-1.1080643150940972
2008	7.373237040117971
2009	-14.932328532356706
2010	35.66993238581483
2011	1.0272579332790883
2012	-2.104097452934667
2013	6.077745783628146
2014	-1.5220552593310686
2015	10.129946839929119
2016	-10.64628586752481
2017	-1.6006402561024373
2018	-1.6571777145180988
2019	-3.235811020365958
2020	-7.606837606837601
2021	-4.648473635522663
2022	-9.192335677904438