Year	annual % growth
1976	-3.70370322148868
1977	3.84615332613203
1978	4.69135711342862
1979	4.95283202638316
1980	-0.224723445081565
1981	3.60360193493119
1982	-0.326087878552912
1983	7.08833599507169
1984	2.44399579291712
1985	3.18091286526222
1986	2.2157962492591
1987	0.942505443951049
1988	3.26797272497768
1989	8.49909748192393
1990	11.2500011048839
1991	2.99625696608503
1992	2.98181798122212
1993	-10.4519771235783
1994	2.96392527025968
1995	5.52098388430487
1996	-0.597460337246531
1997	0.965611512209264
1998	1.53844281753149
1999	1.82251899040263
2000	-3.01322185554295
2001	-14.1642335548765
2002	-30.0925028332979
2003	16.9186369560383
2004	3.01703620026146
2005	4.27748589503416
2006	7.80000006482705
2007	17.0999999879367
2008	11.0274669060675
2009	29.0692579157805
2010	11.3611934291121
2011	1.36494420432145
2012	-6.40000008212452
2013	8.80908194021623
2014	5.52834593458064
2015	2.93434501346772
2016	2.63927921529614
2017	2.62361300448126