Year	% change from 1990
1991	-4.6181858670806
1992	-17.564956542812
1993	-17.469986049162
1994	-14.5186960878706
1995	-15.3201597250877
1996	-16.2954084495357
1997	-18.4819130332266
1998	4.68717592683561
1999	6.35494512452051
2000	1.11344716693191
2001	-1.93084838124431
2002	-1.70968720867528
2003	-0.653222337933401
2004	9.24750620583053
2005	13.887524370302
2006	18.6556981204575
2007	21.5786060951408
2008	28.8203791396765
2009	35.6423171053867
2010	44.0158764466626
2011	45.4560352111292
2012	46.8961939755959