| Value | Category | Cases | |
|---|---|---|---|
| 1 | 489 |
10%
|
|
| 2 | 302 |
6.2%
|
|
| 3 | 141 |
2.9%
|
|
| 4 | 40 |
0.8%
|
|
| 5 | 16 |
0.3%
|
|
| 6 | 3 |
0.1%
|
|
| 7 | 67 |
1.4%
|
|
| Missing value | 3847 |
78.4%
|