Year	% change from 1990
1991	9.93461672930989
1992	13.1464621717772
1993	2.3800905175394
1994	10.3966962555885
1995	2.52595381529608
1996	1.72442290302983
1997	47.6609561028578
1998	9.13783947679867
1999	6.40837282960169
2000	3.78844491620118
2001	7.50459996652009
2002	15.2184897288055
2003	9.24843449806647
2004	15.7746686148595
2005	19.1174411932566
2006	33.9190793269846
2007	20.6968209764512
2008	19.5286474324649
2009	26.6508504553364
2010	21.5343864118886
2011	22.7809613780846
2012	24.0275209478719