| Value | Category | Cases | |
|---|---|---|---|
| 0 | 6314 |
48.9%
|
|
| 1 | 4058 |
31.4%
|
|
| 2 | 1153 |
8.9%
|
|
| 3 | 533 |
4.1%
|
|
| 4 | 4+ | 491 |
3.8%
|
| 5 | never used | 366 |
2.8%
|