| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 32 |
4.4%
|
| 1 | 9 |
1.2%
|
|
| 2 | 32 |
4.4%
|
|
| 3 | 31 |
4.3%
|
|
| 4 | 2 |
0.3%
|
|
| 5 | 166 |
23%
|
|
| 6 | 15 |
2.1%
|
|
| 7 | 9 |
1.2%
|
|
| 8 | 39 |
5.4%
|
|
| 9 | 1 |
0.1%
|
|
| 10 | 175 |
24.3%
|
|
| 11 | 3 |
0.4%
|
|
| 12 | 5 |
0.7%
|
|
| 15 | 73 |
10.1%
|
|
| 16 | 1 |
0.1%
|
|
| 17 | 1 |
0.1%
|
|
| 20 | 45 |
6.2%
|
|
| 22 | 1 |
0.1%
|
|
| 25 | 29 |
4%
|
|
| 30 | 23 |
3.2%
|
|
| 32 | 1 |
0.1%
|
|
| 35 | 3 |
0.4%
|
|
| 40 | 10 |
1.4%
|
|
| 47 | 1 |
0.1%
|
|
| 50 | 5 |
0.7%
|
|
| 60 | 3 |
0.4%
|
|
| 70 | 2 |
0.3%
|
|
| 75 | 1 |
0.1%
|
|
| 80 | 1 |
0.1%
|
|
| 100 | 1 |
0.1%
|
|
| 300 | 1 |
0.1%
|
|
| Sysmiss | 1348 |