Year	% change from 1990
1991	6.49835583621656
1992	13.1117759448306
1993	4.03012670746181
1994	10.0007179709267
1995	6.5487242706542
1996	5.70861673785326
1997	45.3433977569737
1998	18.2862232240566
1999	9.37829632566944
2000	4.43845256106437
2001	5.48868646845564
2002	8.80816163264107
2003	5.18602088381421
2004	11.7911597491969
2005	16.2142219397748
2006	36.326214246492
2007	30.2108005411589
2008	22.6813792738195
2009	24.5436429729019
2010	24.1700987929075
2011	25.4331028770003
2012	26.696106961093