Year	% change from 1990
1991	5.19040263314141
1992	11.5926711554238
1993	17.1149264725809
1994	20.3962523065855
1995	25.3011187401916
1996	39.8945068156678
1997	49.7985972017945
1998	59.2370591003269
1999	64.7095488330956
2000	69.5796779033414
2001	73.5757065111615
2002	74.7974269714685
2003	73.2896775830679
2004	75.8205778227803
2005	78.5732059137282
2006	82.3465212131963
2007	67.5676208355198
2008	71.2396804162571
2009	78.5404394646011
2010	84.7052128217825
2011	86.5522649500004
2012	88.3993170782182