Year	% change from 1990
1991	2.4670152330619
1992	5.16623367477576
1993	0.190405049328923
1994	4.42190892662704
1995	8.90297964130127
1996	5.60543410979133
1997	12.4664036283442
1998	17.195660203464
1999	23.9400730191467
2000	29.8926753886979
2001	28.733220998195
2002	35.4786970740719
2003	39.041863001491
2004	43.5545898254604
2005	48.978039402132
2006	46.6604768264827
2007	49.9623568733402
2008	38.019091919137
2009	27.0943700231761
2010	20.8884987442781
2011	20.6291994563686
2012	18.7201398412332