Català
Castellà
Anglès
1998-99
66,47%
33,53%
-
1999-2000
56,35%
43,65%
-
2000-2001
61,55%
38,45%
-
2001-2002
69,70%
30,30%
-
2002-2003
68,75%
31,25%
-
2003-2004
64,58%
35,42%
-
2004-2005
70,26%
29,74%
-
2005-2006
58,89%
41,11%
-

 2006-2007

 60,38%

 39,62%

 -

 2007-2008

 58,70%

 41,30%

 -