Year	% change from 1990
1991	-1.31469112795906
1992	-1.17461050122456
1993	-2.60653303893437
1994	-2.41891685525882
1995	-1.90590026489016
1996	-0.51255730962525
1997	0.162240922603152
1998	-1.45580513636618
1999	2.82848045817847
2000	2.47380090409415
2001	4.07967602336361
2002	5.67969531315484
2003	6.7762280880028
2004	5.38001462809168
2005	8.15820384486874
2006	9.10168131198139
2007	10.8010200625311
2008	12.330999038955
2009	14.4616024075497
2010	18.3566475720698
2011	19.5402140477905
2012	20.7237805235112