Year	annual % growth
1979	0
1980	16.21606659856687
1981	19.817544188502495
1982	6.5637451177807975
1983	31.52169140616425
1984	6.060605995736651
1985	9.610389706935905
1986	-6.161113813139906
1987	0.7145958892236735
1988	6.48898186609685
1989	1.2455807919999273
1990	6.22594524185196
1991	3.6000000026077146
1992	-5
1993	-1.8000000937446003
1994	-17.499999845820298
1995	5.4988848201566185
1996	0.9000000374215915
1997	-18.749999949708368
1998	2.0361989294197542
1999	-6.151637333615582
2000	13.238095256182831
2001	23.63330529542786
2002	17.006802734793908
2003	10.029069782958715
2004	8.454425388772435
2005	8.160779513247405
2006	11.246147894182144
2007	2.7792074494237937
2008	1.816533594442575
2009	8.445852041493836
2010	8.91706490478559
2011	5.629915042296616
2012	-6.415955338828155
2013	17.8168069114582
2014	-0.9909726589866494
2015	-7.21148109979562
2016	10.765339118935472
2017	-4.846498062331207
2018	-8.996470645863582
2019	-2.473322841211427
2020	0.6990978297465062