Year	% change from 1990
1991	13.6806636885769
1992	19.9714103382259
1993	20.8781110402042
1994	25.0266751754946
1995	27.5476707083599
1996	5.00268028079132
1997	13.9236758136567
1998	5.22935545628589
1999	4.8219527760051
2000	4.01429483088704
2001	11.7988513082323
2002	7.309253350351
2003	6.59042756860244
2004	1.46869176770901
2005	7.54716017868537
2006	9.2911295469049
2007	13.9951499680919
2008	17.0634333120613
2009	30.6843650287173
2010	26.1784301212508
2011	25.0395193971645
2012	19.3941223935632