| Value | Category | Cases | |
|---|---|---|---|
| 0 | 331 |
31.1%
|
|
| 1 | 436 |
41%
|
|
| 2 | 208 |
19.6%
|
|
| 3 | 64 |
6%
|
|
| 4 | 18 |
1.7%
|
|
| 5 | 4 |
0.4%
|
|
| 6 | 1 |
0.1%
|
|
| 7 | 1 |
0.1%
|
|
| Missing value | 364 |