| Value | Category | Cases | |
|---|---|---|---|
| 0 | 256 |
10.8%
|
|
| 1 | 158 |
6.7%
|
|
| 2 | 177 |
7.5%
|
|
| 3 | 112 |
4.7%
|
|
| 4 | 20 |
0.8%
|
|
| 5 | 470 |
19.9%
|
|
| 6 | 8 |
0.3%
|
|
| 7 | 9 |
0.4%
|
|
| 8 | 5 |
0.2%
|
|
| 9 | 3 |
0.1%
|
|
| 10 | 528 |
22.3%
|
|
| 11 | 1 |
0%
|
|
| 12 | 1 |
0%
|
|
| 13 | 2 |
0.1%
|
|
| 15 | 105 |
4.4%
|
|
| 17 | 1 |
0%
|
|
| 18 | 1 |
0%
|
|
| 20 | 296 |
12.5%
|
|
| 25 | 110 |
4.6%
|
|
| 30 | 57 |
2.4%
|
|
| 31 | 1 |
0%
|
|
| 35 | 2 |
0.1%
|
|
| 40 | 15 |
0.6%
|
|
| 50 | 5 |
0.2%
|
|
| 60 | 1 |
0%
|
|
| 65 | 1 |
0%
|
|
| 996 | Refused | 5 |
0.2%
|
| 997 | Difficult to know | 3 |
0.1%
|
| 998 | Doesn't know exactly | 14 |
0.6%
|
| Sysmiss | 16 |