| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 270 |
78.9%
|
| 0 | 37 |
10.8%
|
|
| 2 | 1 |
0.3%
|
|
| 3 | 1 |
0.3%
|
|
| 100 | 1 |
0.3%
|
|
| 150 | 1 |
0.3%
|
|
| 250 | 1 |
0.3%
|
|
| 300 | 3 |
0.9%
|
|
| 350 | 3 |
0.9%
|
|
| 380 | 1 |
0.3%
|
|
| 400 | 2 |
0.6%
|
|
| 500 | 8 |
2.3%
|
|
| 600 | 1 |
0.3%
|
|
| 800 | 1 |
0.3%
|
|
| 1000 | 1 |
0.3%
|
|
| 1500 | 1 |
0.3%
|
|
| 2400 | 1 |
0.3%
|
|
| 2500 | 1 |
0.3%
|
|
| 3000 | 1 |
0.3%
|
|
| 4000 | 1 |
0.3%
|
|
| 4200 | 1 |
0.3%
|
|
| 5000 | 1 |
0.3%
|
|
| 100000 | 1 |
0.3%
|
|
| 120000 | 1 |
0.3%
|
|
| 150000 | 1 |
0.3%
|
|
| Sysmiss | 256 |