Year	% change from 1990
1991	-1.58278964418817
1992	2.15731040063047
1993	-16.0501848392695
1994	-13.385431236483
1995	-10.2252662798427
1996	2.38050118664104
1997	16.3846702220779
1998	24.7453008112474
1999	34.3506261073061
2000	31.9935870248548
2001	22.7835079455318
2002	13.6405064204951
2003	16.894820590102
2004	14.438217962948
2005	15.6368908500802
2006	16.5365723068964
2007	23.979473666796
2008	17.6817034690827
2009	20.1145431958394
2010	19.7911872727109
2011	20.989099145438
2012	22.1870110181651