Català
Castellà
Anglès
1992-93
98,80%
1,20%
-
1993-94
98,13%
1,87%
-
1994-95
91,80%
8,20%
-
1995-96
93,18%
6,82%
-
1996-97
89,24%
10,76%
-
1997-98
85,50%
14,50%
-
1998-99
87,32%
12,68%
-
1999-2000
88,68%
11,32%
-
2000-2001
89,14%
10,86%
-
2001-2002
87,08%
12,92%
-
2002-2003
83%
17%
-
2003-2004
87,43%
12,57%
-
2004-2005
89,52%
10,48%
-
2005-2006
90,56%
9,44%
-

2006-2007 

81,03% 

18,97% 

- 

 2007-2008

98,28% 

1,72% 

-