| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 995 |
60.8%
|
| 0 | 582 |
35.6%
|
|
| 1 | 2 |
0.1%
|
|
| 2 | 8 |
0.5%
|
|
| 3 | 2 |
0.1%
|
|
| 4 | 6 |
0.4%
|
|
| 5 | 2 |
0.1%
|
|
| 6 | 1 |
0.1%
|
|
| 7 | 1 |
0.1%
|
|
| 10 | 2 |
0.1%
|
|
| 12 | 1 |
0.1%
|
|
| 20 | 1 |
0.1%
|
|
| 25 | 1 |
0.1%
|
|
| 28 | 1 |
0.1%
|
|
| 30 | 3 |
0.2%
|
|
| 40 | 2 |
0.1%
|
|
| 60 | 1 |
0.1%
|
|
| 69 | 1 |
0.1%
|
|
| 80 | 3 |
0.2%
|
|
| 90 | 1 |
0.1%
|
|
| 100 | 1 |
0.1%
|
|
| 109 | 1 |
0.1%
|
|
| 200 | 2 |
0.1%
|
|
| 300 | 2 |
0.1%
|
|
| 500 | 1 |
0.1%
|
|
| 600 | 1 |
0.1%
|
|
| 688 | 1 |
0.1%
|
|
| 700 | 1 |
0.1%
|
|
| 800 | 1 |
0.1%
|
|
| 2000 | 1 |
0.1%
|
|
| 3500 | 1 |
0.1%
|
|
| 4500 | 1 |
0.1%
|
|
| 7000 | 1 |
0.1%
|
|
| 7200 | 1 |
0.1%
|
|
| 11000 | 1 |
0.1%
|
|
| 12000 | 1 |
0.1%
|
|
| 60000 | 1 |
0.1%
|
|
| 150000 | 1 |
0.1%
|
|
| Sysmiss | 27 |