Year	% change from 1990
1991	4.75210056787128
1992	8.67416417315905
1993	9.32934680908224
1994	14.1525470832909
1995	18.1528898440902
1996	17.2800077815965
1997	-30.5214596051766
1998	-53.6809730701177
1999	-53.6809730701177
2000	-76.8404865350589
2001	-83.3719325224416
2002	-83.5101021797734
2003	-81.7733239460105
2004	-81.0732581729923
2005	-80.1861561692312
2006	-78.9330643741836
2007	-78.0162718741605
2008	-78.4119290021955
2009	-76.7334895828509
2010	-75.1702224239673
2011	-74.921924648207
2012	-74.6736268724467