| Value | Category | Cases | |
|---|---|---|---|
| 1 | <20 | 56 |
8.8%
|
| 2 | 21-30 | 204 |
31.9%
|
| 3 | 31-40 | 136 |
21.3%
|
| 4 | 41-50 | 88 |
13.8%
|
| 5 | 51-60 | 84 |
13.1%
|
| 6 | >60 | 71 |
11.1%
|