Year	% change from 1990
1991	-0.172208845133959
1992	-0.0256027309579743
1993	-1.28318449206011
1994	0.0124965710628144
1995	-0.424883416135824
1996	-0.0859520253588819
1997	3.83858087719833
1998	4.99283733122009
1999	5.21472766618916
2000	7.02429211496844
2001	8.59611691913804
2002	10.0963150355085
2003	9.71562680971685
2004	10.1133835228139
2005	10.6857874363742
2006	9.94879453808406
2007	10.647078545521
2008	11.2018043829437
2009	12.2740711390167
2010	12.2362766314121
2011	12.9693157047892
2012	13.4082281665656