_id	age__end_of_academic_year_	No of Pupils
1	4	33
2	5	93
3	6	213
4	7	285
5	8	396
6	9	444
7	10	498
8	11	601
9	12	651
10	13	710
11	14	790
12	15	872
13	16	820
14	17	749
15	18	613
16	19	260
17	20	53
18	Unkown	343
19	Total	8,424