Català
Castellà
Anglès
1991-92
87,50%
12,50%
-
1992-93
74,50%
25,50%
-
1993-94
70,06%
24,05%
5,89%
1994-95
67,82%
32,18%
-
1995-96
68,08%
31,92%
-
1996-97
66,66%
33,34%
-
1997-98
68,11%
31,89%
-
1998-99
54,00%
46,00%
-
1999-2000
56,02%
41,25%
2,73%
2000-2001
61,38%
35,94%
2,68%
2001-2002
65,57%
30,93%
3,50%
2002-2003
64,71%
33,75%
1,54%
2003-2004
68,26%
30,29%
1,45%
2004-2005
55,21%
41,59%
3,20%
2005-2006
53,67%
43,07%
3,26%

 2006-2007

67,83% 

29,37% 

2,80% 

 2007-2008

70,21% 

27,66% 

2,13%