| Value | Category | Cases | |
|---|---|---|---|
| 1 | First quartile | 695 |
27%
|
| 2 | Second quartile | 898 |
34.9%
|
| 3 | Third quartile | 488 |
19%
|
| 4 | Fourth quartile | 393 |
15.3%
|
| 5 | Don't know | 82 |
3.2%
|
| 6 | Refused | 17 |
0.7%
|