Year	% change from 1990
1991	-20.4805469549014
1992	-14.3068495453718
1993	-17.9639099429788
1994	-27.3256090897628
1995	-22.5554450313126
1996	-21.4588733065273
1997	-32.2028104291298
1998	-42.9286745029912
1999	-43.8771593090211
2000	-46.761561847654
2001	-51.737954803368
2002	-55.7856172156297
2003	-53.9795732518879
2004	-48.9841265393614
2005	-49.5209941577819
2006	-51.9782282808187
2007	-51.4510276419575
2008	-52.1265954018802
2009	-62.0667722095353
2010	-60.1919385796545
2011	-62.4630433549661
2012	-62.8593145003969