Year	% change from 1990
1991	-0.54549959432475
1992	-1.54841977055045
1993	-1.71435164687361
1994	4.39331872812596
1995	3.89320550397763
1996	4.9485829680614
1997	5.31928226966036
1998	3.24035718170801
1999	-3.15743944146164
2000	-5.99407513423686
2001	-9.15226936135142
2002	-10.8536050509601
2003	-10.2828251775677
2004	-10.3939431084913
2005	-12.0135026869046
2006	-14.9427079887156
2007	-13.4114353353017
2008	-17.3171527660582
2009	-17.6456124228091
2010	-20.1085614882982
2011	-21.0632575296026
2012	-21.984432708411