| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1 | 906 |
90.8%
|
| 2 | 2 | 67 |
6.7%
|
| 3 | 3 | 7 |
0.7%
|
| 4 | 4 | 17 |
1.7%
|
| 9 | Unspecified | 1 |
0.1%
|