Year	% change from 1990
1991	-3.24462580364946
1992	-6.8174140584365
1993	-11.1864788490721
1994	-15.3995056114707
1995	-20.4415179122005
1996	-23.4920345535757
1997	-25.1172966277555
1998	-24.8942319550868
1999	-25.8974867689404
2000	-28.5640747910109
2001	-28.2552160134697
2002	-27.9200827913112
2003	-29.105650078019
2004	-27.8332162601277
2005	-24.6845726113044
2006	-22.5584874499311
2007	-20.2602778656572
2008	-17.7234534272064
2009	-14.6691832937429
2010	-11.8599625723217
2011	-11.3714688748661
2012	-10.8831896626726