| Value | Category | Cases | |
|---|---|---|---|
| 1 | 1_5 | 2001 |
19.9%
|
| 2 | 6_10 | 6448 |
64.1%
|
| 3 | 11_15 | 1276 |
12.7%
|
| 4 | 16_20 | 235 |
2.3%
|
| 5 | 21+ | 60 |
0.6%
|
| Missing value | 46 |
0.5%
|