Year	% change from 1990
1991	4.01945106230215
1992	7.03697659998042
1993	12.2685290950034
1994	23.0482033876179
1995	37.1854704480924
1996	50.8547371169348
1997	64.3190496393721
1998	70.5355569335205
1999	72.2868052609249
2000	75.8767664240723
2001	76.586926014164
2002	78.2219901439248
2003	80.0548284977644
2004	82.2218595998825
2005	84.3980287849613
2006	87.4240396853888
2007	90.6837244215267
2008	94.3024052739793
2009	97.9883163082145
2010	101.409222936588
2011	103.423315165954
2012	105.43740739532