Year	% change from 1990
1991	-6.20266047553504
1992	-18.7031332570622
1993	-28.5783148944231
1994	-37.4066841241932
1995	-44.2107461668401
1996	-44.1936185106358
1997	-46.3835820480492
1998	-61.6672010946873
1999	-64.1310208998513
2000	-65.819508405466
2001	-64.0912941826923
2002	-59.1646596879212
2003	-62.0311625266925
2004	-61.3225958596736
2005	-60.5313851698871
2006	-58.2557260265995
2007	-57.1811764097026
2008	-57.8093038331442
2009	-59.6637307490743
2010	-56.427159747845
2011	-57.9713920466136
2012	-58.5837687624051