Year	% change from 1990
1991	5.5861903620235
1992	8.08296668761786
1993	15.8447970867055
1994	35.3839574410181
1995	42.0645771640737
1996	26.885898125409
1997	27.1873359813902
1998	48.9668042533063
1999	35.7921815366073
2000	32.4071614169912
2001	33.5514848341509
2002	38.4320306880844
2003	44.0279406714314
2004	48.3862188729127
2005	40.6351448547565
2006	39.9029333817154
2007	39.9301483214214
2008	39.7681546326955
2009	34.5571416537612
2010	35.4643063106261
2011	36.9658739844797
2012	38.4680248356114