| Value | Category | Cases | |
|---|---|---|---|
| 1 | 0 | 2 |
0.1%
|
| 2 | 1 | 45 |
2.5%
|
| 3 | 2 | 26 |
1.5%
|
| 4 | 3 | 15 |
0.8%
|
| 5 | 4 | 18 |
1%
|
| 6 | 6 | 1 |
0.1%
|
| 7 | 8 | 1 |
0.1%
|
| 8 | 12 | 1 |
0.1%
|
| Missing value | 1669 |
93.9%
|