Year	% change from 1990
1991	-7.63595689445431
1992	-26.0412837262468
1993	-37.4858392209614
1994	-38.5964138618724
1995	-42.7587927103376
1996	-41.5561016128809
1997	-42.4345600560398
1998	-65.3196570507046
1999	-67.5571788709888
2000	-68.1490184060815
2001	-67.8418606004092
2002	-58.8520103390288
2003	-65.1359156830266
2004	-64.1057710790543
2005	-64.0535092364822
2006	-64.815683722979
2007	-57.8690869337501
2008	-60.7941135809491
2009	-66.272604574768
2010	-59.1894234084126
2011	-56.3003793921788
2012	-58.2471782256251