Year	% change from 1990
1991	1.52576978646339
1992	6.91665188515618
1993	-1.16250191423551
1994	0.194733784947476
1995	0.454761524330993
1996	0.140766311122609
1997	16.0466284598738
1998	17.7443953881713
1999	3.39464305153809
2000	1.37849423127472
2001	0.586931954925785
2002	11.2631344680437
2003	16.5506433434973
2004	19.3807337719908
2005	28.4179762811596
2006	34.0710831924501
2007	39.158613990299
2008	32.0028551390505
2009	31.1872024368044
2010	42.9020051242567
2011	52.7224925376718
2012	56.3033121748825