Year	% change from 1990
1991	0.727088922586394
1992	4.66753934618158
1993	-11.786357686276
1994	-20.0383633370919
1995	-19.797296421582
1996	-13.3105227004679
1997	-9.15924673069197
1998	-1.6360580807099
1999	4.34870890953942
2000	11.6580478764079
2001	29.0563396710603
2002	50.9303541264349
2003	34.8484259367264
2004	67.5013284601527
2005	42.4519702252118
2006	50.6313965896376
2007	53.2610996625927
2008	57.5216765815156
2009	125.771262922785
2010	132.800221194016
2011	135.128223405956
2012	137.456225617896