Year	% change from 1990
1991	-0.209885612341265
1992	-2.41455906530941
1993	-0.818553888130957
1994	0.315702941896667
1995	-1.78402770490083
1996	-1.65809633749606
1997	-1.48056809039073
1998	-0.290341763738755
1999	0.10844089970965
2000	1.10802112848498
2001	8.67702102354217
2002	8.9288837583517
2003	9.22797075593802
2004	10.4995277573722
2005	10.8038618952671
2006	11.6521495784797
2007	12.2984223598139
2008	13.1047329205583
2009	13.5997131563298
2010	13.9259103788435
2011	15.065169482632
2012	16.2044285864204