Year	% change from 1990
1991	4.75622115421963
1992	9.45417692196322
1993	14.1237650975033
1994	18.4305776748226
1995	22.1336666819687
1996	26.2687435039979
1997	29.1926065344337
1998	32.1411882136774
1999	34.5848032101285
2000	34.448262102427
2001	36.1856299900772
2002	37.3544689551427
2003	39.4214188269
2004	43.2763509624382
2005	48.615579104973
2006	52.7329997492823
2007	58.4583096446282
2008	64.5791179209026
2009	69.040245491495
2010	73.7638615708584
2011	75.5015001865669
2012	77.2391388022755