Year	% change from 1990
1991	-3.60256578086137
1992	-8.40773225116726
1993	-13.6139983418423
1994	-17.3242571017149
1995	-20.4303355587555
1996	-22.3428022865122
1997	-22.54117031025
1998	-20.4310337304185
1999	-15.3462495090981
2000	-13.1244927346511
2001	-10.335558755509
2002	-7.63014356154819
2003	-3.4786403106864
2004	-1.11620194615351
2005	5.61853645765151
2006	14.1257581707902
2007	29.2211022385129
2008	47.8893397914212
2009	56.4096522232404
2010	60.5838460531483
2011	67.3683969809059
2012	74.1533668116621