| Value | Category | Cases | |
|---|---|---|---|
| 0 | 18 |
0.8%
|
|
| 1 | 109 |
4.7%
|
|
| 2 | 364 |
15.6%
|
|
| 3 | 335 |
14.3%
|
|
| 4 | 256 |
10.9%
|
|
| 5 | 222 |
9.5%
|
|
| 6 | 75 |
3.2%
|
|
| 7 | 421 |
18%
|
|
| Missing value | 539 |
23%
|