Year	% change from 1990
1991	-2.48274964841891
1992	-5.7123009386272
1993	-10.0288787525224
1994	-11.5079367340205
1995	-12.4016359150369
1996	-11.1675846305121
1997	-12.6445469125403
1998	-15.4740604953694
1999	-17.4618286076543
2000	-17.612791430485
2001	-19.5408106046625
2002	-21.3284087875949
2003	-22.3289800679413
2004	-23.7118849239598
2005	-24.685984429347
2006	-25.5030475245454
2007	-26.3406690789175
2008	-27.1710430117183
2009	-27.4795836280058
2010	-27.4331195300412
2011	-28.3056975006555
2012	-29.1971097595628