| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don?t know | 9 |
0.4%
|
| 0 | 17 |
0.8%
|
|
| 1 | 446 |
20.9%
|
|
| 2 | 1217 |
57%
|
|
| 3 | 344 |
16.1%
|
|
| 4 | 10 |
0.5%
|
|
| 5 | 3 |
0.1%
|
|
| 6 | 33 |
1.5%
|
|
| 8 | 1 |
0%
|
|
| 12 | 50 |
2.3%
|
|
| 15 | 1 |
0%
|
|
| 18 | 4 |
0.2%
|