| Value | Category | Cases | |
|---|---|---|---|
| 0 | 960 |
11.4%
|
|
| 1 | 1692 |
20.1%
|
|
| 2 | 782 |
9.3%
|
|
| 3 | 428 |
5.1%
|
|
| 4 | 4+ | 649 |
7.7%
|
| 5 | Never used | 3903 |
46.4%
|
| 9 | 30 |