| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 0 |
0%
|
| -9 | Don't know (spontaneous) | 20 |
10.2%
|
| 0 | 25 |
12.7%
|
|
| 1 | 25 |
12.7%
|
|
| 2 | 23 |
11.7%
|
|
| 3 | 19 |
9.6%
|
|
| 4 | 9 |
4.6%
|
|
| 5 | 10 |
5.1%
|
|
| 6 | 7 |
3.6%
|
|
| 7 | 4 |
2%
|
|
| 8 | 3 |
1.5%
|
|
| 9 | 1 |
0.5%
|
|
| 10 | 10 |
5.1%
|
|
| 12 | 2 |
1%
|
|
| 15 | 5 |
2.5%
|
|
| 16 | 2 |
1%
|
|
| 18 | 2 |
1%
|
|
| 19 | 2 |
1%
|
|
| 20 | 3 |
1.5%
|
|
| 22 | 1 |
0.5%
|
|
| 24 | 1 |
0.5%
|
|
| 25 | 2 |
1%
|
|
| 30 | 2 |
1%
|
|
| 32 | 1 |
0.5%
|
|
| 34 | 1 |
0.5%
|
|
| 35 | 1 |
0.5%
|
|
| 40 | 3 |
1.5%
|
|
| 43 | 1 |
0.5%
|
|
| 50 | 4 |
2%
|
|
| 70 | 3 |
1.5%
|
|
| 80 | 2 |
1%
|
|
| 156 | 1 |
0.5%
|
|
| 220 | 1 |
0.5%
|
|
| 470 | 1 |
0.5%
|
|
| Sysmiss | 575 |