| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 103 |
13.7%
|
| 0 | 488 |
64.9%
|
|
| 1 | 12 |
1.6%
|
|
| 2 | 24 |
3.2%
|
|
| 3 | 6 |
0.8%
|
|
| 4 | 14 |
1.9%
|
|
| 5 | 28 |
3.7%
|
|
| 6 | 3 |
0.4%
|
|
| 7 | 3 |
0.4%
|
|
| 8 | 3 |
0.4%
|
|
| 9 | 6 |
0.8%
|
|
| 10 | 18 |
2.4%
|
|
| 12 | 2 |
0.3%
|
|
| 13 | 3 |
0.4%
|
|
| 14 | 2 |
0.3%
|
|
| 15 | 5 |
0.7%
|
|
| 18 | 1 |
0.1%
|
|
| 20 | 5 |
0.7%
|
|
| 22 | 3 |
0.4%
|
|
| 29 | 1 |
0.1%
|
|
| 30 | 5 |
0.7%
|
|
| 31 | 1 |
0.1%
|
|
| 35 | 1 |
0.1%
|
|
| 38 | 1 |
0.1%
|
|
| 40 | 3 |
0.4%
|
|
| 50 | 3 |
0.4%
|
|
| 55 | 1 |
0.1%
|
|
| 60 | 1 |
0.1%
|
|
| 62 | 1 |
0.1%
|
|
| 65 | 1 |
0.1%
|
|
| 70 | 1 |
0.1%
|
|
| 100 | 1 |
0.1%
|
|
| 180 | 1 |
0.1%
|
|
| 485 | 1 |
0.1%
|
|
| Sysmiss | 821 |