Year	annual % growth
1991	-7.87872401640097
1992	-29.0902993055638
1993	-24.1576191057463
1994	-28.8193187474782
1995	-6.1232853705696
1996	-4.94135479470845
1997	1.83488631719418
1998	-23.313262602127
1999	-7.00547214396663
2000	38.3560484667999
2001	1.98483909136048
2002	6.61390002945363
2003	14.8996481085574
2004	15.3395758550263
2005	12.1440883270724
2006	17.9987581388066
2007	17.592273255914
2008	5.48801222015369
2009	-32.1372097266384
2010	19.5890998953668
2011	16.1406490184121
2012	1.12266406548333
2013	2.11236846416722
2014	-1.37026451661583
2015	-2.4519506128606
2016	1.9234734954513
2017	7.605383126318
2018	-1.18867459639254