Year	% change from 1990
1991	-6.7680084914331
1992	-10.6336533867192
1993	-14.6951133417432
1994	-17.121970036343
1995	-18.3150016617682
1996	-11.2928207366125
1997	-16.9922460688036
1998	-13.6366249667969
1999	-25.3163448748913
2000	-26.8456137577384
2001	-31.779960953679
2002	-29.0732361137483
2003	-28.0029524972802
2004	-33.246371140097
2005	-33.177505464176
2006	-36.6242688116072
2007	-37.3013241644185
2008	-38.0437904867786
2009	-40.2299691933584
2010	-40.0742345411152
2011	-41.24476802477
2012	-41.214421824148