Year	% change from 1990
1991	-11.6417051908716
1992	-10.8539804564479
1993	-17.1183887461661
1994	-24.8884347138052
1995	-25.3134817086775
1996	-17.7734653360903
1997	-26.1050953076189
1998	-32.3891481048912
1999	-34.3030420697505
2000	-33.2718618818011
2001	-40.663050319013
2002	-37.3839367906606
2003	-38.8527745750561
2004	-36.6799592036557
2005	-34.6031733960435
2006	-36.334320463468
2007	-36.7579506453695
2008	-33.9387688575282
2009	-39.2933025405706
2010	-31.6035421573736
2011	-34.2766857294699
2012	-33.015340232399