Year	% change from 1990
1991	2.92703552394131
1992	7.41253417769128
1993	11.5531856861584
1994	17.3091415691414
1995	21.460316467298
1996	23.5552455771912
1997	27.2835407987801
1998	30.6102867972689
1999	35.0934373311377
2000	41.4301987606479
2001	44.0236953285534
2002	48.8800057207186
2003	53.6447461623508
2004	63.4036563127781
2005	70.8620289074247
2006	79.8049334557986
2007	86.0963626392887
2008	9.5084708494517
2009	6.95876495544536
2010	12.4565207798465
2011	15.7410202440964
2012	18.6880963020715