Row Labels Count of Grade
1 1
2 2
3 3
6 1
8 1
13 1
14 1
15 1
17 2
18 2
21 3
23 1
25 1
26 1
27 1
29 2
30 1
31 2
32 1
37 1
48 1
52 1
53 1
68 1
Grand Total 33