Year	% change from 1990
1991	-5.35110562138277
1992	4.71059015287054
1993	-5.88147280356038
1994	-38.8196305893888
1995	-55.1776061530233
1996	-66.5684033592044
1997	-62.252882637956
1998	-69.8689681079326
1999	-68.3160364444388
2000	-64.8614232686663
2001	-64.9903540662545
2002	-67.2184692571676
2003	-66.9857571262121
2004	-66.2491006678934
2005	-65.4424077269341
2006	-66.0628672935993
2007	-67.1006806272722
2008	-66.3541553918541
2009	-66.8762455351742
2010	-66.7148432774527
2011	-66.3819917102272
2012	-66.0491401430018