Year	% change from 1990
1991	-18.3941691878512
1992	-14.6660903959242
1993	-22.7692428588268
1994	-20.7333045197962
1995	-20.9441672232918
1996	-28.2575668277605
1997	-16.0740245962831
1998	-23.8340340261679
1999	-25.7828769007112
2000	-20.0745222846516
2001	-44.1371655337708
2002	-42.1327256296413
2003	-42.928765077993
2004	-41.5008578575825
2005	-41.7289431980407
2006	-42.0910769714353
2007	-40.4226422013542
2008	-40.5746336096814
2009	-43.8024701059552
2010	-37.8241195499849
2011	-38.7639197604161
2012	-39.7037199708472