Year	% change from 1990
1991	-1.50825370354396
1992	-3.95641047758705
1993	-4.14074904715809
1994	-4.57555804748075
1995	-3.93500547904067
1996	-1.33733319276319
1997	0.377622511668929
1998	-0.842142927884315
1999	-2.17500343438409
2000	-1.22903028967032
2001	-1.61368130832462
2002	-1.60888914447096
2003	-0.541833993054552
2004	0.926485011708844
2005	2.19001888112558
2006	3.77590563909895
2007	4.35320164467063
2008	-0.726172562625593
2009	0.609882719776622
2010	2.18490723968168
2011	3.2067563120785
2012	4.22860538447531