Year	% change from 1990
1991	-25.2924816579299
1992	45.2295364527987
1993	-39.5750435989607
1994	-20.392517757361
1995	-17.0140177649876
1996	-35.6705087986008
1997	-40.7006340280355
1998	-32.2672984914505
1999	-48.2535502010891
2000	-35.2292822314533
2001	-40.6406377905114
2002	-33.0058623442259
2003	-46.2093055181285
2004	-35.2506368244703
2005	-41.3411701300088
2006	-3.01933607553424
2007	92.8807854422689
2008	-29.3816828436183
2009	-29.0307556983715
2010	-24.8939642768166
2011	-24.1429039195847
2012	-23.3918435623529