Value | Category | Cases | |
---|---|---|---|
0 | 1 |
20%
|
|
15 | 1 |
20%
|
|
18 | 1 |
20%
|
|
30 | 2 |
40%
|
|
97 | Refused | 0 |
0%
|
98 | Don't know | 0 |
0%
|
99 | Missing | 0 |
0%
|
Sysmiss | 1720 |