| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 51 |
2.8%
|
| 2 | 1 | 195 |
10.8%
|
| 3 | 2 | 71 |
3.9%
|
| 4 | 3 | 13 |
0.7%
|
| 5 | 4 | 5 |
0.3%
|
| 6 | 5 | 7 |
0.4%
|
| 7 | Less than 1 | 1 |
0.1%
|
| Missing value | 1469 |
81.1%
|