| Value | Category | Cases | |
|---|---|---|---|
| 1 | less than 20 | 4 |
0.4%
|
| 2 | 20-30 | 233 |
22.8%
|
| 3 | 30-40 | 379 |
37.2%
|
| 4 | 40-50 | 269 |
26.4%
|
| 5 | 50-60 | 111 |
10.9%
|
| 6 | 60 and above | 24 |
2.4%
|