Year	% change from 1990
1991	2.09155786256707
1992	2.34214704546736
1993	1.13560653520679
1994	-0.816735114637923
1995	-2.40976634878964
1996	-2.96232212642821
1997	-7.62606525262771
1998	-11.3312053140817
1999	-15.7284488330698
2000	-19.0825651581596
2001	-20.4037933103295
2002	-23.8089555800841
2003	-26.9217638031218
2004	-26.1815976054811
2005	-29.0007259131092
2006	-30.8035758678639
2007	-31.9053727514096
2008	-31.7509090487224
2009	-33.1884821786674
2010	-32.7512769772846
2011	-35.0551654336111
2012	-36.9356443523012