Year	% change from 1990
1991	10.682250046396
1992	14.5278918412447
1993	2.99099960116767
1994	14.0821673169511
1995	11.0682953161309
1996	11.510345106183
1997	50.1394916236432
1998	22.4774479446577
1999	14.948327794076
2000	11.1861695803489
2001	15.004086151895
2002	19.0594011630616
2003	11.4276830622201
2004	20.7567646051137
2005	25.8359411980988
2006	38.2890905880796
2007	24.4313036570105
2008	21.2815009740355
2009	31.5493575139463
2010	30.395854940736
2011	33.647003923381
2012	36.8245312844697