| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 20 |
1.4%
|
| 2 | 1 | 89 |
6.1%
|
| 3 | 2 | 163 |
11.2%
|
| 4 | 3 | 239 |
16.4%
|
| 5 | 4 | 271 |
18.6%
|
| 6 | 5 | 205 |
14.1%
|
| 7 | 6 | 146 |
10%
|
| 8 | 7 | 115 |
7.9%
|
| 9 | 8 | 75 |
5.1%
|
| 10 | 9 | 50 |
3.4%
|
| 11 | 10 | 33 |
2.3%
|
| 12 | 11 | 13 |
0.9%
|
| 13 | 12 | 5 |
0.3%
|
| 14 | 13 | 5 |
0.3%
|
| 15 | 14 | 2 |
0.1%
|
| 16 | 16 | 1 |
0.1%
|
| 17 | 18 | 1 |
0.1%
|
| Missing value | 24 |
1.6%
|