Year	% change from 1990
1991	0.326788453968208
1992	-0.327290968712268
1993	0.529746515006613
1994	3.17763970903369
1995	5.85847108749606
1996	7.60556360364053
1997	11.035547476932
1998	13.2563618911324
1999	13.5183575814836
2000	14.1172130253162
2001	14.5812456941334
2002	16.019700880785
2003	17.5533877219667
2004	18.6660201237084
2005	15.4825023532721
2006	16.1184879489497
2007	19.5569798770288
2008	14.6846502295
2009	12.5681369357864
2010	9.75073461590299
2011	13.8841953958259
2012	8.82874642681684