Year	% change from 1990
1991	-20.9188518264296
1992	38.7026677146424
1993	-31.6985386429189
1994	-16.0464760631204
1995	-14.0815216038296
1996	-30.0429978269915
1997	-34.5376755566778
1998	-31.1686233226757
1999	-42.6275975631008
2000	-32.8536829114757
2001	-35.7130917535929
2002	-29.5255301820561
2003	-42.2150460386162
2004	-33.4195186661782
2005	-37.2438001685771
2006	-10.5983064048624
2007	71.8294881871562
2008	-26.7116442667786
2009	-27.1821663934106
2010	-23.5563364002034
2011	-22.7918997642055
2012	-22.0274631282075