Year	%
2003	39.368428431235095
2004	13.4289395380226
2005	9.696695971334691
2006	10.2927789923319
2007	10.448079841204
2008	7.74154674429342
2009	4.7639770543256095
2010	7.550332342558121
2011	9.4349020362069