Year	% change from 1990
1991	5.38416895552105
1992	14.6587240878469
1993	15.9082953482543
1994	24.6282429477083
1995	20.8916738921785
1996	24.039258303908
1997	22.3398878344505
1998	14.3128565388809
1999	13.1275782381204
2000	40.7148200406616
2001	40.4926183266032
2002	20.6213649541899
2003	27.0084018697285
2004	22.5301672567541
2005	23.5766578757891
2006	22.7609218661592
2007	23.3170239861547
2008	18.5907602293741
2009	18.5648313565729
2010	22.0856272110406
2011	24.7824357714627