Year	% change from 1990
1991	1.47179349220152
1992	6.40144145045953
1993	11.5544391543991
1994	4.70911354550516
1995	11.0605046327867
1996	9.66441231489186
1997	11.0101414548389
1998	17.8942560951958
1999	13.1244564843374
2000	7.30391206151189
2001	14.9988425853515
2002	21.4559650648465
2003	31.1037981969357
2004	43.7546531197017
2005	54.0099725348632
2006	27.4138351716415
2007	29.0914607824123
2008	31.8389129061118
2009	31.8855223068212
2010	38.6673465174332
2011	46.8529261632017
2012	49.2366677093826