15
14
13
12
11
10
09
08
07
06
05
0
50
100
150
200
250
300
Thousands of pupils
French | German | Spanish
15
14
13
12
11
10
09
08
07
06
05
0
50
100
150
200
250
300
Thousands of pupils
French | German | Spanish
15
14
13
12
11
10
09
08
07
06
05
0
50
100
150
200
250
300
Thousands of pupils
French | German | Spanish
2015
2014
2013
2012
2011
2010
2009
2008
2007
2006
2005
0
50
100
150
200
250
300
Thousands of pupils
French | German | Spanish