Value | Category | Cases | |
---|---|---|---|
0 | neither certificate or registered | 308 |
40.5%
|
1 | has certificate | 346 |
45.5%
|
2 | registered | 82 |
10.8%
|
8 | don't know | 15 |
2%
|
9 | 9 |
1.2%
|
|
11 | .Z | 14907 |