Year	% change from 1990
1991	-1.6604246252373
1992	-2.00095850414929
1993	-3.49625243830475
1994	-5.33951367660814
1995	-3.88766488135432
1996	-2.96393752491843
1997	-5.46351171485923
1998	-3.04063596572411
1999	-5.92484103341285
2000	-5.55233539152032
2001	-4.27432690660805
2002	-0.603853055713743
2003	4.42546990154489
2004	10.2119876938683
2005	15.8237948168787
2006	15.4500453187733
2007	18.5652691356257
2008	23.8477325926565
2009	25.778599811853
2010	30.9345508948487
2011	34.4645002115422
2012	37.5165661525053