Year	% change from 1990
1991	4.51801514007473
1992	11.4247546030086
1993	9.43795860680334
1994	9.48403709511916
1995	11.3519583357534
1996	15.492826857176
1997	24.8905151884765
1998	22.9060424773964
1999	22.1505875975296
2000	26.0997850961259
2001	28.1357572941473
2002	29.5223712996844
2003	31.1149832529864
2004	32.8895858744264
2005	31.3779016863178
2006	33.2574393525779
2007	24.4943950746355
2008	19.923718805057
2009	17.3111846818067
2010	14.0996302104509
2011	15.2406265125554
2012	16.3816228146599