Year	annual % growth
1991	4.55577478316131
1992	1.85454227784409
1993	-2.0023475581562
1994	2.43023810167757
1995	5.69494146208488
1996	6.50156519447876
1997	3.14081706277585
1998	2.65323538813882
1999	4.79046422518677
2000	3.94632075124122
2001	6.0345112933075
2002	4.35644633362293
2003	6.48918793052485
2004	10.5332228065356
2005	5.38646345145084
2006	6.61557755852051
2007	10.6223831438611
2008	1.51391123660424
2009	8.19580246142726
2010	4.29010677004791
2011	1.13233830715747
2012	8.22186943885154
2013	4.24573931767429
2014	6.22605290541836
2015	4.00237250939375
2016	1.9899160856758
2017	3.09796500582833