Year	% change from 1990
1991	2.8815699627579
1992	2.32820042523545
1993	-1.9542826060422
1994	-0.0203830058633891
1995	-2.28625097861606
1996	-1.52005102987526
1997	14.7138484534519
1998	1.0738535940239
1999	-3.21502874292657
2000	-2.92234720262605
2001	-1.2813516228763
2002	4.34222519015461
2003	5.22517539101535
2004	9.58321993275391
2005	15.0105776517811
2006	20.0319982010009
2007	14.8378165639283
2008	18.6795675721519
2009	21.9880381865571
2010	22.9814470580037
2011	25.4983488019269
2012	27.7210122051847