| Value | Category | Cases | |
|---|---|---|---|
| 0 | 1831 |
14.7%
|
|
| 1 | 3283 |
26.4%
|
|
| 2 | 3289 |
26.5%
|
|
| 3 | 1571 |
12.6%
|
|
| 4 | 538 |
4.3%
|
|
| 5 | 170 |
1.4%
|
|
| 6 | 68 |
0.5%
|
|
| 7 | 14 |
0.1%
|
|
| 8 | 11 |
0.1%
|
|
| 9 | 27 |
0.2%
|
|
| 10 | 11 |
0.1%
|
|
| 11 | 1 |
0%
|
|
| 12 | 1 |
0%
|
|
| 20 | 3 |
0%
|
|
| 21 | 1 |
0%
|
|
| 77 | Don't know | 14 |
0.1%
|
| 88 | Don't know | 5 |
0%
|
| 99 | Don't know | 1591 |
12.8%
|