Year	% change from 1990
1991	-15.0146336931105
1992	-14.0275949641513
1993	-23.7248555987426
1994	-17.9076141660343
1995	-16.4002663487
1996	-15.1781594065999
1997	-20.8157703207024
1998	-17.5139755640553
1999	-10.8078727720396
2000	-4.75494371060904
2001	-7.06257645911083
2002	-12.300664323211
2003	-12.5183889000728
2004	-31.6574012419282
2005	-33.2685011691469
2006	-35.4138470353222
2007	-36.220945537885
2008	-38.9234557195286
2009	-32.2285024079781
2010	-27.1638509066696
2011	-27.039097467023
2012	-26.9143440273763