Català
Castellà
Anglès
1990-91
80,05%
19,95%
-
1991-92
84,75%
15,25%
-
1992-93
73,87%
20,57%
5,56%
1993-94
75,71%
18,42%
5,87%
1994-95
70,67%
26,25%
3,08%
1995-96
71,75%
23,84%
4,41%
1996-97
68,01%
26,91%
5,08%
1997-98
68,00%
29,21%
2,79%
1998-99
67,08%
30,38%
2,54%
1999-2000
66,19%
31,12%
2,69%
2000-2001
67,41%
29,47%
3,12%
2001-2002
72,30%
25,83%
1,87%
2002-2003
70,74%
26,79%
2,47%
2003-2004
69,09%
28,79%
2,12%
2004-2005
66,30%
31,00%
2,70%
2005-2006
65,50%
30,67%
3,83%

2006-2007 

61,54% 

32,36% 

6,10% 

 2007-2008

61,68% 

32,67% 

5,65%