Year	% change from 1990
1991	4.67088529065078
1992	8.905432512356
1993	12.3032859772112
1994	15.5596914614223
1995	18.4097441942221
1996	22.9381475277623
1997	24.9697044895258
1998	25.5708584072627
1999	26.1718055297061
2000	26.8463717765784
2001	28.1229191223608
2002	29.8374588994355
2003	32.0594743263643
2004	34.8067497983746
2005	37.7056062204024
2006	40.7502533242343
2007	44.8561738734826
2008	49.4766011125587
2009	54.1456252455694
2010	59.3384618566081
2011	60.9318464751742
2012	62.5252310937403