Year	% change from 1990
1991	1.7231063778868
1992	0.691813028776056
1993	-6.7067306626957
1994	-6.65310518128513
1995	-4.97210145409258
1996	-4.60470042856067
1997	-6.24714699143322
1998	-4.49080167878779
1999	-2.74287689628122
2000	-0.731699750486392
2001	-11.8241970581327
2002	-21.7223086434526
2003	-22.8856713600043
2004	-21.3181231967878
2005	-20.4357402753956
2006	-21.2804524040613
2007	-19.7182224704063
2008	-18.4063925119328
2009	-19.5870394745589
2010	-17.7557957622574
2011	-16.93335371988
2012	-16.1109116775026