| Value | Category | Cases | |
|---|---|---|---|
| 0 | 19 |
1.2%
|
|
| 1 | 411 |
25.2%
|
|
| 2 | 199 |
12.2%
|
|
| 3 | 154 |
9.5%
|
|
| 4 | 79 |
4.8%
|
|
| 5 | 50 |
3.1%
|
|
| 6 | 97 |
6%
|
|
| 7 | 33 |
2%
|
|
| 8 | 55 |
3.4%
|
|
| 9 | 44 |
2.7%
|
|
| 10 | 30 |
1.8%
|
|
| 11 | 13 |
0.8%
|
|
| 12 | 185 |
11.4%
|
|
| 13 | 10 |
0.6%
|
|
| 14 | 11 |
0.7%
|
|
| 15 | 12 |
0.7%
|
|
| 16 | 7 |
0.4%
|
|
| 17 | 6 |
0.4%
|
|
| 18 | 16 |
1%
|
|
| 19 | 1 |
0.1%
|
|
| 20 | 2 |
0.1%
|
|
| 24 | 11 |
0.7%
|
|
| 27 | 1 |
0.1%
|
|
| 28 | 1 |
0.1%
|
|
| 36 | 2 |
0.1%
|
|
| 96 | period not returned | 126 |
7.7%
|
| 97 | inconsistent | 0 |
0%
|
| 98 | don't know | 54 |
3.3%
|
| Sysmiss | 37089 |