Year	% change from 1990
1991	12.6704388982128
1992	17.6307483614542
1993	20.3539461030163
1994	18.3393845272782
1995	24.6478582638701
1996	27.782600044208
1997	27.95908626479
1998	37.1311632304529
1999	39.029353450219
2000	40.2476165170596
2001	34.9475533860283
2002	36.282944545861
2003	36.0974442888659
2004	37.6707015618197
2005	39.1008291845233
2006	46.1767772986054
2007	50.3496401152634
2008	44.2274269322045
2009	44.0177971867337
2010	50.2425853023949
2011	54.6873062632137
2012	58.6736567265926