Català
Castellà
Anglès
1999-2000
77,90%
22,50%
-
2000-2001
82,36%
17,64%
-
2001-2002
85,42%
14,58%
-
2002-2003
77,36%
22,64%
-
2003-2004
74,33%
25,45%
0,22%
2004-2005
72,51%
26,84%
0,65%
2005-2006
64,49%
33,83%
1,68%

2006-2007 

71,76% 

25,88% 

2,35% 

 2007-2008

75,61% 

24,39% 

-