Year	% change from 1990
1991	-16.3294318343364
1992	-20.7026252191632
1993	-38.7592996256456
1994	-20.1102923754916
1995	-22.592759323319
1996	-15.3982846040847
1997	-14.6691228735251
1998	-18.4428754205563
1999	-26.3635502061318
2000	-35.5310856276359
2001	-38.1853291001279
2002	-42.7421456664929
2003	-39.4677297066768
2004	-37.1582239492015
2005	-38.562052788703
2006	-36.3716059328058
2007	-40.6494337298015
2008	-39.4825380277686
2009	-36.9449841254798
2010	-35.4108420603706
2011	-41.9283385577538
2012	-46.9116929900276