| Value | Category | Cases | |
|---|---|---|---|
| 0 | none | 142 |
16.8%
|
| 1 | 222 |
26.3%
|
|
| 2 | 146 |
17.3%
|
|
| 3 | 125 |
14.8%
|
|
| 4 | 57 |
6.7%
|
|
| 5 | 33 |
3.9%
|
|
| 6 | 22 |
2.6%
|
|
| 7 | 9 |
1.1%
|
|
| 8 | 6 |
0.7%
|
|
| 9 | 2 |
0.2%
|
|
| 10 | 10 |
1.2%
|
|
| 11 | 1 |
0.1%
|
|
| 13 | 1 |
0.1%
|
|
| 15 | 1 |
0.1%
|
|
| 88 | many, but don't know exact number | 68 |
8%
|
| 99 | missing | 0 |
0%
|