| Value | Category | Cases | |
|---|---|---|---|
| 0 | 265 |
15.2%
|
|
| 1 | 310 |
17.8%
|
|
| 2 | 74 |
4.3%
|
|
| 3 | 38 |
2.2%
|
|
| 4 | 17 |
1%
|
|
| 5 | 34 |
2%
|
|
| 6 | 12 |
0.7%
|
|
| 7 | 6 |
0.3%
|
|
| 8 | 6 |
0.3%
|
|
| 9 | 3 |
0.2%
|
|
| 10 | 10 |
0.6%
|
|
| 11 | 3 |
0.2%
|
|
| 12 | 3 |
0.2%
|
|
| 13 | 6 |
0.3%
|
|
| 15 | 4 |
0.2%
|
|
| 16 | 2 |
0.1%
|
|
| 18 | 1 |
0.1%
|
|
| 19 | 1 |
0.1%
|
|
| 20 | 11 |
0.6%
|
|
| 22 | 2 |
0.1%
|
|
| 23 | 1 |
0.1%
|
|
| 24 | 1 |
0.1%
|
|
| 25 | 2 |
0.1%
|
|
| 27 | 1 |
0.1%
|
|
| 33 | 1 |
0.1%
|
|
| 35 | 1 |
0.1%
|
|
| 39 | 1 |
0.1%
|
|
| 40 | 3 |
0.2%
|
|
| 42 | 1 |
0.1%
|
|
| 45 | 1 |
0.1%
|
|
| 48 | 1 |
0.1%
|
|
| 50 | 1 |
0.1%
|
|
| 54 | 1 |
0.1%
|
|
| 60 | 2 |
0.1%
|
|
| 70 | 3 |
0.2%
|
|
| 83 | 1 |
0.1%
|
|
| 95 | 1 |
0.1%
|
|
| 100 | 1 |
0.1%
|
|
| 999 | No textbook | 906 |
52.1%
|