Year	% change from 1990
1991	-15.625413460374
1992	26.2677796604513
1993	-20.3242465273925
1994	-10.3549451245682
1995	-8.71516378749164
1996	-19.8487819524114
1997	-22.7915113289173
1998	86.549678614765
1999	41.6084557796599
2000	46.2375902742265
2001	33.2399070442343
2002	35.019952113817
2003	62.7359901851881
2004	46.4825164024829
2005	64.3540701855238
2006	46.9174224743236
2007	43.9365853111202
2008	46.6435018811971
2009	28.9785688540585
2010	44.9251676161621
2011	44.9251676161621
2012	45.4175685663509