| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don't know | 1 |
0.5%
|
| -9 | Don't know (spontaneous) | 20 |
9%
|
| 0 | 30 |
13.5%
|
|
| 2 | 1 |
0.5%
|
|
| 3 | 5 |
2.3%
|
|
| 4 | 6 |
2.7%
|
|
| 5 | 12 |
5.4%
|
|
| 6 | 3 |
1.4%
|
|
| 7 | 2 |
0.9%
|
|
| 8 | 4 |
1.8%
|
|
| 9 | 3 |
1.4%
|
|
| 10 | 15 |
6.8%
|
|
| 11 | 3 |
1.4%
|
|
| 12 | 2 |
0.9%
|
|
| 14 | 3 |
1.4%
|
|
| 15 | 13 |
5.9%
|
|
| 16 | 1 |
0.5%
|
|
| 18 | 3 |
1.4%
|
|
| 20 | 18 |
8.1%
|
|
| 24 | 2 |
0.9%
|
|
| 25 | 3 |
1.4%
|
|
| 27 | 1 |
0.5%
|
|
| 30 | 19 |
8.6%
|
|
| 35 | 1 |
0.5%
|
|
| 38 | 1 |
0.5%
|
|
| 40 | 11 |
5%
|
|
| 50 | 2 |
0.9%
|
|
| 55 | 2 |
0.9%
|
|
| 60 | 5 |
2.3%
|
|
| 65 | 2 |
0.9%
|
|
| 70 | 7 |
3.2%
|
|
| 75 | 2 |
0.9%
|
|
| 80 | 3 |
1.4%
|
|
| 90 | 4 |
1.8%
|
|
| 100 | 5 |
2.3%
|
|
| 165 | 1 |
0.5%
|
|
| 220 | 1 |
0.5%
|
|
| 350 | 1 |
0.5%
|
|
| 450 | 1 |
0.5%
|
|
| 500 | 1 |
0.5%
|
|
| 800 | 2 |
0.9%
|
|
| Sysmiss | 138 |