Year	% change from 1990
1991	-7.37844404013553
1992	-19.0591465208249
1993	-25.6845591519681
1994	-61.90676442711
1995	-63.7440216147904
1996	-68.5075553715587
1997	-58.8419091612285
1998	-52.208870343941
1999	-50.8943337436948
2000	-41.7871422501607
2001	-51.7005305646646
2002	-50.190109926026
2003	-42.5711141857957
2004	-43.7808451993158
2005	-41.9178768697774
2006	-38.9519441327392
2007	-35.8411138589591
2008	-33.8171240562595
2009	-32.651842813409
2010	-32.920066674656
2011	-32.2492673414026
2012	-31.5784680081491