Year	% change from 1990
1991	4.36152234573537
1992	10.7413106636153
1993	12.2864510745845
1994	13.190982498889
1995	14.1901390354285
1996	17.6096426919484
1997	18.6635185425919
1998	20.2243794194916
1999	22.2072743432927
2000	24.9329612823063
2001	27.6695316208103
2002	25.9442104849462
2003	25.4079007433966
2004	26.1884823401727
2005	28.6490375749367
2006	30.5182614373948
2007	34.0266461897521
2008	35.8027565232376
2009	36.6023840691217
2010	35.9599611825418
2011	37.3195607943672
2012	38.6791604061927