Year	% change from 1990
1991	16.6634575756031
1992	30.1361140893212
1993	8.73810463039972
1994	12.0490524975586
1995	-0.0827062048128546
1996	-6.24080952107193
1997	72.8753543547746
1998	26.3111508693015
1999	-13.1687573006004
2000	-38.9259927352697
2001	-43.2797321668996
2002	-3.46224821105943
2003	-21.7668766917874
2004	-7.47600409598782
2005	10.4267005561436
2006	5.7363540959851
2007	14.1535772601869
2008	-31.9442268261828
2009	-35.3757997006891
2010	5.49909608355939
2011	29.4397556875706
2012	30.0094729690904