| Value | Category | Cases | |
|---|---|---|---|
| -2 | Refusal to answer | 0 |
0%
|
| -1 | Don't know | 1 |
0%
|
| 0 | 2520 |
95.7%
|
|
| 2 | 1 |
0%
|
|
| 9 | 1 |
0%
|
|
| 10 | 9 |
0.3%
|
|
| 11 | 1 |
0%
|
|
| 12 | 3 |
0.1%
|
|
| 13 | 1 |
0%
|
|
| 14 | 1 |
0%
|
|
| 15 | 5 |
0.2%
|
|
| 16 | 1 |
0%
|
|
| 18 | 2 |
0.1%
|
|
| 20 | 17 |
0.6%
|
|
| 21 | 1 |
0%
|
|
| 25 | 1 |
0%
|
|
| 26 | 1 |
0%
|
|
| 30 | 20 |
0.8%
|
|
| 32 | 1 |
0%
|
|
| 35 | 2 |
0.1%
|
|
| 40 | 9 |
0.3%
|
|
| 45 | 1 |
0%
|
|
| 50 | 11 |
0.4%
|
|
| 54 | 1 |
0%
|
|
| 60 | 5 |
0.2%
|
|
| 70 | 1 |
0%
|
|
| 80 | 1 |
0%
|
|
| 100 | 5 |
0.2%
|
|
| 150 | 2 |
0.1%
|
|
| 160 | 1 |
0%
|
|
| 200 | 3 |
0.1%
|
|
| 300 | 1 |
0%
|
|
| 400 | 1 |
0%
|
|
| 800 | 1 |
0%
|
|
| Sysmiss | 1 |